marsupial Get Printable Handwriting (mar-su-pi-al) 4 syllables Rhymes Learn It! Spelling Test Definition noun. any of an order of mammals that have a pouch on the abdomen of the female Example Sentence The koala is a marsupial. Synonyms pouched mammal; kangaroo; opossum Antonyms reptile Rhymes Four Syllable Rhymes (1) marsupial Share with your friends: