/ Dictionary / Index M moist: Meaning and Definition of Find definitions for: moist Pronunciation: (moist), [key] — -er, -est. moderately or slightly wet; damp. (of the eyes) tearful. accompanied by or connected with liquid or moisture. (of the air) having high humidity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: moist (Thesaurus) Moissan moisten Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language