ONOMATOPOEIC /ˌɒnəmæatəˈpiːɪk/ Scrabble 18 Words With Friends 22 Definition adjective of or relating to or characterized by onomatopoeia. — synonyms: onomatopoetic adjective (of words) formed in imitation of a natural sound. — synonyms: echoic, imitative, onomatopoeical, onomatopoetic See all 415 words you can make from ONOMATOPOEIC → 12-letter words Words starting with O Words ending with C ← Unscramble different letters