adults Get Printable Handwriting Rhymes Learn It! Spelling Test Definition noun. andadjective. 1 a person who is fully grown and mature; grownup; 2 an animal or plant that is fully grown and mature. Example Sentence Children and adults like to read. Synonyms grown; grown-up; mature; elder Antonyms infant; child; childhood; juvenile Rhymes One Syllable Rhymes (10) cult's cults hult's hults hultz schmults schultes shults stults stultz Two Syllable Rhymes (8) adults adults' consults exults insults results adults' adults Share with your friends: