"Un-afraid" is a term used to describe the absence of fear. Antonyms for the word "un-afraid" include various terms that represent different forms of fear. Some common antonyms for "un-afraid" are timid, afraid, fearful, scared, and apprehensive. Timidity implies shyness and hesitation in the face of challenges, while fear and apprehension suggest an innate sense of danger and risk. Scared is a more colloquial term that describes a sense of terror or panic, while fearful implies an emotional response to a potential threat. In contrast to "un-afraid," these antonyms all imply a sense of vulnerability or caution in the face of the unknown.