/ Dictionary / Index C compossible: Meaning and Definition of Find definitions for: com•pos•si•ble Pronunciation: (kom-pos'u-bul, kum-), [key] — adj. compatible; potentially consistent, as with another statement, theory, etc. able to exist or happen together. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. compos mentis* compost Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language