/ Dictionary / Index D declensional: Meaning and Definition of Find definitions for: de•clen•sion•al Pronunciation: (di-klen'shu-nl), [key] — adj. of or pertaining to grammatical declension. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. declension declinable Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language