posterior Get Printable Handwriting (pos-te-ri-or) 4 syllables Rhymes Learn It! Spelling Test Definition adjective. located behind or toward the back of somethingnoun. (often plural) the hind end of the body; buttocks Example Sentence They examined the events posterior to the outbreak of war. Synonyms hind; rear; reverse Antonyms anterior Rhymes Four Syllable Rhymes (1) posterior Share with your friends: