bonafide Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition adjective. genuine or real. it is often used to describe something authentic. Example Sentence The fireman is a bonafide hero. More Example Sentences He is a bonafide expert in his field. Synonyms genuine; authentic; real Antonyms fake; false; counterfeit Hear It! Say It! Write It! bonafide Switch to cursive Start Share with your friends: