Antonyms for the phrase "be certain" include words that express doubt or uncertainty. These could include terms such as unsure, uncertain, doubtful, dubious, ambiguous, and unclear. Other antonyms could include words such as hesitant, fearful, worried, confused, or hesitant. When someone is not certain about something, they may feel anxious or nervous, and be uncomfortable making a decision or taking action. Conversely, when someone is certain about something, they feel confident and assured in their choices or actions. A thorough understanding of the opposite meanings of "be certain" and its antonyms can be invaluable in communication and decision-making.

What are the antonyms for Be certain?

• n.

  • no doubt
  • doubt
  .

• v.

  • ask
  • query
  .
  • doubt
  • Feared
  ,
  • Fearing
  ,
  • Hesitated
  ,
  • Misgave
  ,
  • Misgiven
  ,
  • Skepticize
  ,
  • am a quandary
  ,
  • am apprehensive of
  ,
  • am curious
  ,
  • am dubious
  ,
  • am in a quandary
  ,
  • am puzzled
  ,
  • am quandary
  ,
  • am uncertain
  ,
  • am undetermined
  ,
  • are a quandary
  ,
  • are apprehensive of
  ,
  • are curious
  ,
  • are dubious
  ,
  • are in a quandary
  ,
  • are in quandary
  ,
  • are puzzled
  ,
  • are quandary
  ,
  • are uncertain
  ,
  • are undetermined
  ,
  • art a quandary
  ,
  • art apprehensive of
  ,
  • art curious
  ,
  • art in a quandary
  ,
  • art in quandary
  ,
  • art puzzled
  ,
  • art quandary
  ,
  • art uncertain
  ,
  • art undetermined
  ,
  • be a quandary
  ,
  • be apprehensive of
  ,
  • be curious
  ,
  • be dubious
  ,
  • be in a quandary
  ,
  • be in quandary
  ,
  • be puzzled
  ,
  • be quandary
  ,
  • be uncertain
  ,
  • be undetermined
  ,
  • being a quandary
  ,
  • being apprehensive of
  ,
  • being curious
  ,
  • being dubious
  ,
  • being in a quandary
  ,
  • being in quandary
  ,
  • being puzzled
  ,
  • being quandary
  ,
  • being uncertain
  ,
  • being undetermined
  ,
  • call in question
  ,
  • call question
  ,
  • called in question
  ,
  • called question
  ,
  • calling in question
  ,
  • calling question
  ,
  • calls in question
  ,
  • calls question
  ,
  • dis believe
  ,
  • dis believed
  ,
  • dis believes
  ,
  • dis believing
  ,
  • dis credit
  ,
  • dis credited
  ,
  • dis crediting
  ,
  • dis credits
  ,
  • dis trust
  ,
  • dis trusted
  ,
  • dis trusting
  ,
  • dis trusts
  ,
  • dis-believe
  ,
  • dis-believed
  ,
  • dis-believes
  ,
  • dis-believing
  ,
  • dis-credit
  ,
  • dis-credited
  ,
  • dis-crediting
  ,
  • dis-credits
  ,
  • dis-trust
  ,
  • dis-trusted
  ,
  • dis-trusting
  ,
  • dis-trusts
  ,
  • gave no credence
  ,
  • give no credence
  ,
  • gives no credence
  ,
  • giving no credence
  ,
  • had qualms
  ,
  • haddest qualms
  ,
  • hadst qualms
  ,
  • harbor suspicion
  ,
  • harbored suspicion
  ,
  • harboring suspicion
  ,
  • harbors suspicion
  ,
  • has qualms
  ,
  • hast qualms
  ,
  • hath qualms
  ,
  • have qualms
  ,
  • having qualms
  ,
  • in sinuate
  ,
  • in sinuated
  ,
  • in sinuates
  ,
  • in sinuating
  ,
  • in-sinuate
  ,
  • in-sinuated
  ,
  • in-sinuates
  ,
  • in-sinuating
  ,
  • is a quandary
  ,
  • is apprehensive of
  ,
  • is curious
  ,
  • is dubious
  ,
  • is in a quandary
  ,
  • is in quandary
  ,
  • is puzzled
  ,
  • is quandary
  ,
  • is uncertain
  ,
  • is undetermined
  ,
  • mis doubt
  ,
  • mis doubted
  ,
  • mis doubting
  ,
  • mis gave
  ,
  • mis give
  ,
  • mis given
  ,
  • mis gives
  ,
  • mis giving
  ,
  • mis-doubt
  ,
  • mis-doubted
  ,
  • mis-doubting
  ,
  • mis-gave
  ,
  • mis-give
  ,
  • mis-given
  ,
  • mis-gives
  ,
  • mis-giving
  ,
  • misgive
  ,
  • misgives
  ,
  • not bought
  ,
  • not buy
  ,
  • not buying
  ,
  • not buys
  ,
  • read differently
  ,
  • reading differently
  ,
  • reads differently
  ,
  • scruple
  ,
  • scruples
  ,
  • shilly shally
  ,
  • shillyshally
  ,
  • skepticized
  ,
  • skepticizes
  ,
  • skepticizing
  ,
  • smell a rat
  ,
  • smell rat
  ,
  • smelled a rat
  ,
  • smelled rat
  ,
  • smelling a rat
  ,
  • smelling rat
  ,
  • smells a rat
  ,
  • smells rat
  ,
  • smelt a rat
  ,
  • smelt rat
  ,
  • sur mise
  ,
  • sur mises
  ,
  • sur-mise
  ,
  • sur-mises
  ,
  • take dim view of
  ,
  • takes dim view of
  ,
  • taking dim view of
  ,
  • took dim view of
  ,
  • was a quandary
  ,
  • was apprehensive of
  ,
  • was curious
  ,
  • was dubious
  ,
  • was in a quandary
  ,
  • was in quandary
  ,
  • was puzzled
  ,
  • was quandary
  ,
  • was uncertain
  ,
  • was undetermined
  ,
  • wast a quandary
  ,
  • wast apprehensive of
  ,
  • wast curious
  ,
  • wast dubious
  ,
  • wast in a quandary
  ,
  • wast in quandary
  ,
  • wast puzzled
  ,
  • wast quandary
  ,
  • wast uncertain
  ,
  • wast undetermined
  ,
  • were a quandary
  ,
  • were apprehensive of
  ,
  • were curious
  ,
  • were dubious
  ,
  • were in a quandary
  ,
  • were in quandary
  ,
  • were puzzled
  ,
  • were quandary
  ,
  • were uncertain
  ,
  • were undetermined
  ,
  • wert a quandary
  ,
  • wert apprehensive of
  ,
  • wert curious
  ,
  • wert dubious
  ,
  • wert in a quandary
  ,
  • wert in quandary
  ,
  • wert puzzled
  ,
  • wert quandary
  ,
  • wert uncertain
  ,
  • wert undetermined
  ,
  • wonder at
  ,
  • wondered at
  ,
  • wondering at
  ,
  • wonders at
  .
  • mistake
  • Misconstrued
  ,
  • Misdeem
  ,
  • Misknow
  ,
  • Not know
  ,
  • am mark
  ,
  • am off mark
  ,
  • am off the mark
  ,
  • am the mark
  ,
  • am wrong
  ,
  • are off the mark
  ,
  • are the mark
  ,
  • are wrong
  ,
  • art mark
  ,
  • art the mark
  ,
  • art wrong
  ,
  • be mark
  ,
  • be off mark
  ,
  • be off the mark
  ,
  • be the mark
  ,
  • be wrong
  ,
  • being mark
  ,
  • being off mark
  ,
  • being off the mark
  ,
  • being the mark
  ,
  • being wrong
  ,
  • deceive oneself
  ,
  • deceived oneself
  ,
  • deceives oneself
  ,
  • deceiving oneself
  ,
  • get wrong
  ,
  • gets wrong
  ,
  • getting wrong
  ,
  • got wrong
  ,
  • had wrong impression
  ,
  • haddest wrong impression
  ,
  • hadst wrong impression
  ,
  • has wrong impression
  ,
  • hast wrong impression
  ,
  • hath wrong impression
  ,
  • have wrong impression
  ,
  • having wrong impression
  ,
  • is mark
  ,
  • is off mark
  ,
  • is off the mark
  ,
  • is the mark
  ,
  • is wrong
  ,
  • made a mess
  ,
  • made mess
  ,
  • make a mess
  ,
  • make mess
  ,
  • makes a mess
  ,
  • makes mess
  ,
  • making a mess
  ,
  • making mess
  ,
  • mis apprehend
  ,
  • mis apprehended
  ,
  • mis apprehending
  ,
  • mis apprehends
  ,
  • mis calculate
  ,
  • mis calculated
  ,
  • mis calculates
  ,
  • mis calculating
  ,
  • mis conceive
  ,
  • mis conceives
  ,
  • mis conceiving
  ,
  • mis construe
  ,
  • mis construed
  ,
  • mis construes
  ,
  • mis construing
  ,
  • mis counted
  ,
  • mis counting
  ,
  • mis counts
  ,
  • mis deem
  ,
  • mis deemed
  ,
  • mis deeming
  ,
  • mis deems
  ,
  • mis interpreted
  ,
  • mis interpreting
  ,
  • mis interprets
  ,
  • mis judged
  ,
  • mis judges
  ,
  • mis judging
  ,
  • mis knew
  ,
  • mis know
  ,
  • mis knowing
  ,
  • mis known
  ,
  • mis knows
  ,
  • mis read
  ,
  • mis reading
  ,
  • mis reads
  ,
  • mis take
  ,
  • mis taken
  ,
  • mis takes
  ,
  • mis taking
  ,
  • mis took
  ,
  • mis-apprehend
  ,
  • mis-apprehended
  ,
  • mis-apprehending
  ,
  • mis-apprehends
  ,
  • mis-calculate
  ,
  • mis-calculated
  ,
  • mis-calculates
  ,
  • mis-calculating
  ,
  • mis-conceive
  ,
  • mis-conceived
  ,
  • mis-conceives
  ,
  • mis-conceiving
  ,
  • mis-construe
  ,
  • mis-construed
  ,
  • mis-construes
  ,
  • mis-construing
  ,
  • mis-counted
  ,
  • mis-counting
  ,
  • mis-counts
  ,
  • mis-deem
  ,
  • mis-deemed
  ,
  • mis-deeming
  ,
  • mis-deems
  ,
  • mis-interpreted
  ,
  • mis-interprets
  ,
  • mis-judged
  ,
  • mis-judges
  ,
  • mis-judging
  ,
  • mis-knew
  ,
  • mis-know
  ,
  • mis-knowing
  ,
  • mis-known
  ,
  • mis-knows
  ,
  • mis-read
  ,
  • mis-reading
  ,
  • mis-reads
  ,
  • mis-take
  ,
  • mis-taken
  ,
  • mis-takes
  ,
  • mis-taking
  ,
  • mis-took
  ,
  • miscounted
  ,
  • miscounting
  ,
  • misdeemed
  ,
  • misdeeming
  ,
  • misdeems
  ,
  • misknew
  ,
  • misknowing
  ,
  • misknown
  ,
  • misknows
  ,
  • miss boat
  ,
  • miss the boat
  ,
  • missed boat
  ,
  • missed the boat
  ,
  • misses boat
  ,
  • misses the boat
  ,
  • missing boat
  ,
  • missing the boat
  ,
  • not knew
  ,
  • not knowing
  ,
  • not knows
  ,
  • over estimate
  ,
  • over estimated
  ,
  • over estimates
  ,
  • over estimating
  ,
  • over look
  ,
  • over looked
  ,
  • over looks
  ,
  • over-estimate
  ,
  • over-estimated
  ,
  • over-estimates
  ,
  • over-estimating
  ,
  • over-look
  ,
  • over-looking
  ,
  • over-looks
  ,
  • overestimate
  ,
  • overestimated
  ,
  • overestimates
  ,
  • overestimating
  ,
  • put foot in
  ,
  • puts foot in
  ,
  • putting foot in
  ,
  • slip up
  ,
  • slipped up
  ,
  • slipping up
  ,
  • slips up
  ,
  • slipt up
  ,
  • take for
  ,
  • takes for
  ,
  • taking for
  ,
  • took for
  ,
  • under estimate
  ,
  • under estimated
  ,
  • under estimates
  ,
  • under estimating
  ,
  • under-estimate
  ,
  • under-estimated
  ,
  • under-estimates
  ,
  • under-estimating
  ,
  • was mark
  ,
  • was off mark
  ,
  • was off the mark
  ,
  • was the mark
  ,
  • was wrong
  ,
  • wast mark
  ,
  • wast off mark
  ,
  • wast off the mark
  ,
  • wast the mark
  ,
  • wast wrong
  ,
  • were mark
  ,
  • were off mark
  ,
  • were off the mark
  ,
  • were the mark
  ,
  • were wrong
  ,
  • wert mark
  ,
  • wert off mark
  ,
  • wert off the mark
  ,
  • wert the mark
  ,
  • wert wrong
  .
  • mistrust
  • am wary
  ,
  • are wary
  ,
  • art wary
  ,
  • be ware
  ,
  • be wared
  ,
  • be wares
  ,
  • be waring
  ,
  • be wary
  ,
  • be-ware
  ,
  • be-wared
  ,
  • be-wares
  ,
  • be-waring
  ,
  • being wary
  ,
  • had doubts
  ,
  • haddest doubts
  ,
  • hadst doubts
  ,
  • has doubts
  ,
  • hast doubts
  ,
  • hath doubts
  ,
  • have doubts
  ,
  • having doubts
  ,
  • is wary
  ,
  • mis trust
  ,
  • mis trusted
  ,
  • mis trusting
  ,
  • mis trusts
  ,
  • mis-trust
  ,
  • mis-trusted
  ,
  • mis-trusting
  ,
  • mis-trusts
  ,
  • mistrust
  ,
  • suspicioned
  ,
  • suspicioning
  ,
  • was wary
  ,
  • wast wary
  ,
  • were wary
  ,
  • wert wary
  .
  • mix up, misunderstand
  • mistake
  .
  • query
  • hit up
  ,
  • hits up
  ,
  • hitting up
  ,
  • in quire
  ,
  • in quired
  ,
  • in quires
  ,
  • in quiring
  ,
  • in-quire
  ,
  • in-quired
  ,
  • in-quires
  ,
  • in-quiring
  ,
  • put out a feeler question
  ,
  • put out feeler question
  ,
  • puts out a feeler question
  ,
  • puts out feeler question
  ,
  • putting out a feeler question
  ,
  • putting out feeler question
  ,
  • tested the waters
  ,
  • tested waters
  ,
  • testing the waters
  ,
  • testing waters
  ,
  • tests the waters
  ,
  • tests waters
  .
  • risk
  • Adventured
  ,
  • Adventuring
  ,
  • Periled
  ,
  • Periling
  ,
  • Perilled
  ,
  • Perilling
  ,
  • am caught short
  ,
  • are caught short
  ,
  • art caught short
  ,
  • be caught short
  ,
  • being caught short
  ,
  • defied danger
  ,
  • defies danger
  ,
  • defy danger
  ,
  • defying danger
  ,
  • end anger
  ,
  • end angered
  ,
  • end angering
  ,
  • end angers
  ,
  • end-anger
  ,
  • end-angering
  ,
  • end-angers
  ,
  • expose danger
  ,
  • expose to danger
  ,
  • exposed danger
  ,
  • exposed to danger
  ,
  • exposes danger
  ,
  • exposes to danger
  ,
  • exposing danger
  ,
  • exposing to danger
  ,
  • go out depth
  ,
  • go out of depth
  ,
  • go out of one depth
  ,
  • go out of one's depth
  ,
  • go out of ones depth
  ,
  • go out one depth
  ,
  • go out one's depth
  ,
  • go out ones depth
  ,
  • goes out depth
  ,
  • goes out of depth
  ,
  • goes out of one depth
  ,
  • goes out of one's depth
  ,
  • goes out of ones depth
  ,
  • goes out one depth
  ,
  • goes out one's depth
  ,
  • goes out ones depth
  ,
  • going out depth
  ,
  • going out of depth
  ,
  • going out of one depth
  ,
  • going out of one's depth
  ,
  • going out of ones depth
  ,
  • going out one depth
  ,
  • going out one's depth
  ,
  • going out ones depth
  ,
  • hang by a thread
  ,
  • hang by thread
  ,
  • hanged by a thread
  ,
  • hanged by thread
  ,
  • hanging by a thread
  ,
  • hanging by thread
  ,
  • hangs by a thread
  ,
  • hangs by thread
  ,
  • hung by a thread
  ,
  • hung by thread
  ,
  • is caught short
  ,
  • jeopardied
  ,
  • jeopardies
  ,
  • jeopardying
  ,
  • leap before looking
  ,
  • leaped before looking
  ,
  • leaping before looking
  ,
  • leaps before looking
  ,
  • leapt before looking
  ,
  • leave luck
  ,
  • leave to luck
  ,
  • leaved luck
  ,
  • leaved to luck
  ,
  • leaves luck
  ,
  • leaves to luck
  ,
  • leaving luck
  ,
  • leaving to luck
  ,
  • left luck
  ,
  • left to luck
  ,
  • play with fire
  ,
  • played with fire
  ,
  • playing with fire
  ,
  • plays with fire
  ,
  • put in jeopardy
  ,
  • puts in jeopardy
  ,
  • puts jeopardy
  ,
  • putting in jeopardy
  ,
  • ran chance
  ,
  • ran risk
  ,
  • ran the chance
  ,
  • ran the risk
  ,
  • run chance
  ,
  • run risk
  ,
  • run the chance
  ,
  • run the risk
  ,
  • running chance
  ,
  • running risk
  ,
  • running the chance
  ,
  • running the risk
  ,
  • runs chance
  ,
  • runs risk
  ,
  • runs the chance
  ,
  • runs the risk
  ,
  • skate on thin ice
  ,
  • skate thin ice
  ,
  • skated on thin ice
  ,
  • skated thin ice
  ,
  • skates on thin ice
  ,
  • skates thin ice
  ,
  • skating on thin ice
  ,
  • skating thin ice
  ,
  • take a flyer
  ,
  • take a header
  ,
  • take flyer
  ,
  • take header
  ,
  • take liberty
  ,
  • take plunge
  ,
  • take the liberty
  ,
  • takes a flyer
  ,
  • takes a header
  ,
  • takes flyer
  ,
  • takes header
  ,
  • takes liberty
  ,
  • takes plunge
  ,
  • takes the liberty
  ,
  • taking a flyer
  ,
  • taking a header
  ,
  • taking a plunge
  ,
  • taking flyer
  ,
  • taking header
  ,
  • taking liberty
  ,
  • taking plunge
  ,
  • taking the liberty
  ,
  • took a flyer
  ,
  • took a header
  ,
  • took a plunge
  ,
  • took flyer
  ,
  • took header
  ,
  • took liberty
  ,
  • took plunge
  ,
  • took the liberty
  ,
  • was caught short
  ,
  • wast caught short
  ,
  • went out depth
  ,
  • went out of depth
  ,
  • went out of one depth
  ,
  • went out of one's depth
  ,
  • went out of ones depth
  ,
  • went out one depth
  ,
  • went out one's depth
  ,
  • went out ones depth
  ,
  • were caught short
  ,
  • wert caught short
  .
  • take a chance
  • risk
  .

• Other relevant words:

• appear
,
• seem
.

Famous quotes with Be certain

• Most people would rather be certain they're miserable, than risk being happy.

  Robert Anthony
• Never, never rest contented with any circle of ideas, but always be certain that a wider one is still possible.

  Pearl Bailey
• We must be certain that we all realize that our enemy is not an enemy that is located in one single place. There are terrorist cells all around the globe.

  Marsha Blackburn
• A new father quickly learns that his child invariably comes to the bathroom at precisely the times when he's in there, as if he needed company. The only way for this father to be certain of bathroom privacy is to shave at the gas station.

  Bill Cosby
• Through perseverance many people win success out of what seemed destined to be certain failure.

  Benjamin Disraeli

The term "regional arterial infusion" refers to the delivery of medication or other therapeutic agents to a specific area of the body via an artery. Antonyms for this term might in...