Breadcrumb Home > Dictionary > Index S shiest: Meaning and Definition of Find definitions for: shi•est Pronunciation: (shī'ist), [key] — adj. a superlative of. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: shiest (Thesaurus) shier shift ✖ Related Content Daily Word Quiz: umbrage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language