The antonyms for the word "unconceited" are conceited, arrogant, pompous, vain, egotistical, narcissistic, self-important, haughty, and superior. All these words describe a personality that is overly confident and self-centered, which is quite the opposite of being unconceited. People who display these traits tend to think they are superior to others and often belittle those around them. They tend to be unapproachable and have a high sense of entitlement. Ultimately, being unconceited means being humble, modest, and having a realistic sense of self-worth. The antonyms of this word highlight characteristics that are undesirable and often result in negative social outcomes.