Slackminded is a term used to describe someone who lacks intelligence or is lazy in their thoughts and actions. There are various synonyms that can be used to describe this type of person. Some common alternatives include slow-witted, dull-minded, brainless, and foolish. Others may include shiftless, indolent, lethargic, or apathetic. People who are slackminded may also be referred to as idle, unproductive, or impractical. Despite having negative connotations, it is important to remember that people can change and improve, and it is never too late to develop new skills and habits to overcome any perceived shortcomings.