The term "overassertive" refers to someone who is excessively or aggressively confident in their actions or statements. Some antonyms for this term might include "timid," "shy," "withdrawn," "reticent," or "unassuming." These words describe people who are less likely to assert themselves or take charge in situations. Other antonyms might include "modest," "humble," "reserved," or "meek." Instead of being forceful or insistent, individuals who possess these qualities are more likely to be quiet, humble, or understated in their behavior. By understanding these antonyms, we can gain a better understanding of the nuances of language and how different words can describe vastly different personalities and attitudes.