enthusiast Get Printable Handwriting (en-thu-si-ast) 4 syllables Rhymes Learn It! Spelling Test Definition noun. 1 an ardent supporter of some person or activity 2 a person having a strong liking for something Example Sentence John is a baseball enthusiast. Synonyms zealot; devotee; fan; aficionado Antonyms critic; detractor Rhymes Four Syllable Rhymes (1) enthusiast Share with your friends: