/ Dictionary / Index H hard-and-fast: Meaning and Definition of Find definitions for: hard-and-fast Pronunciation: (härd'n-fast', -fäst'), [key] — adj. strongly binding; not to be set aside or violated: hard-and-fast rules. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hard-and-fast (Thesaurus) hard hardanger Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language