unmanfully Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition adverb. in a manner that lacks courage or bravery. Example Sentence He acted unmanfully by running away from the fight. More Example Sentences Many thought he behaved unmanfully in the challenge. Synonyms cowardly; timid; weakly Antonyms bravely; courageously; valiantly Hear It! Say It! Write It! unmanfully Switch to cursive Start Share with your friends: