Definition of Audacious: Audacious (adjective): Showing a willingness to take surprisingly bold risks; showing an impudent lack of respect. Synonyms: bold, daring, fearless, intrepid Antonyms: cautious, timid, fearful, reserved Memory Tip: Think of “audacious” as someone who is not afraid to take risks, even if they are audaciously bold or impudent. Conversation and Short Story…