/ Dictionary / Index D declivous: Meaning and Definition of Find definitions for: de•cli•vous Pronunciation: (di-klī'vus), [key] — adj. sloping downward. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. declivity Declomycin Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language