Grade 5 accident Get Printable Handwriting (ac-ci-dent) 3 syllables Rhymes Learn It! Spelling Test Definition noun. a chance and usually sudden event bringing loss or injury Example Sentence The woman said that knocking over the vase was an accident. Synonyms mishap; casualty; mischance Antonyms planned event Rhymes Three Syllable Rhymes (1) accident Share with your friends: