/ Dictionary / Index G gastness: Meaning and Definition of Find definitions for: gast•ness Pronunciation: (gast'nis), [key] — n. Obs. terror or fright. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gastight Gaston Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language