cosmic Get Printable Handwriting (cos-mic) 2 syllables Rhymes Learn It! Spelling Test Definition adjective. 1 of or from or pertaining to or characteristic of the cosmos or universe; 2 inconceivably extended in space or time Example Sentence We read about a cosmic catastrophe. Synonyms planetary; universal; limitless Antonyms bounded; limited Rhymes Two Syllable Rhymes (1) cosmic Share with your friends: