/ Dictionary / Index S sickish: Meaning and Definition of Find definitions for: sick•ish Pronunciation: (sik'ish), [key] — adj. somewhat sick or ill. somewhat sickening or nauseating. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sickish (Thesaurus) sickie sickle Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language