villainous Get Printable Handwriting (vil-lain-ous) 3 syllables Rhymes Learn It! Spelling Test Definition adjective. 1 a mean or evil or unprincipled person; 2 very objectionable or unpleasant; bad; wretched Example Sentence His villainous deeds put him in prison. Synonyms criminal; evildoer; scoundrel; rascal; fiend Antonyms angel; saint; hero Rhymes Three Syllable Rhymes (1) villainous Share with your friends: