Breadcrumb Home > Dictionary > Index S sicker: Meaning and Definition of Find definitions for: sick•er Pronunciation: (sik'ur), [key] withas superl. sick•er Pronunciation: (sik'ur), [key] — Scot. and North Eng. Scot. and North Eng. —adj. safe from danger; secure. dependable; trustworthy. —adv. certainly; without doubt. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sicker (Thesaurus) sickening Sickert TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: inimical Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language