/ Dictionary / Index S symptomless: Meaning and Definition of Find definitions for: symp•tom•less Pronunciation: (simp'tum-lis), [key] — adj. having or showing no symptoms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: symptomless (Thesaurus) symptomatology symptosis 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