nauseating Get Printable Handwriting (nau-se-at-ing) 4 syllables Rhymes Learn It! Spelling Test Definition verb. 1 upset and make to feel like one needs to vomit; 2 cause aversion in;adjective. causing or able to cause the state that precedes vomiting Example Sentence The rotten fish had a nauseating smell. Synonyms sicken; turn one's stomach; disgust; revolt; loathe Antonyms heal; like Rhymes Four Syllable Rhymes (1) nauseating Share with your friends: