The term "self-depreciative" refers to a person who belittles or speaks negatively about themselves. Synonyms for this term include "self-deprecating," which means to disparage oneself or make fun of one's own shortcomings. Another synonym is "self-effacing," which means to be modest or humble to the point of putting oneself in the background. Other synonyms include "self-critical," "self-doubting," and "self-degrading," which all describe negative self-talk or behavior. It's important to note that while some self-depreciative behavior may be seen as humorous or endearing, it can also be a sign of low self-esteem or depression.