Thesaurus

certain

adjective

Synonyms and Antonyms of certain

  1. 1 known but not named a certain person told me that today is your birthday Synonyms of certain anonymous, given, one, some, unidentified, unnamed, unspecified Words Related to certain particular, specific Near Antonyms of certain known, named, specified

  2. 2 having or showing a mind free from doubt I'm certain that they'll arrive on time Synonyms of certain assured, clear, cocksure, confident, doubtless, implicit, positive, sanguine, sure Words Related to certain self-assured, self-conceited, self-confident; decisive, resolute, unfaltering, unhesitating, unquestioning, unwavering Near Antonyms of certain hesitant, indecisive, vacillating, wavering; diffident, unassuming Antonyms of certain doubtful, dubious, uncertain, unsure

  3. 3 having been established and usually not subject to change a certain percentage of the profits will go to charity Synonyms of certain fixed, determinate, final, firm, flat, frozen, hard, hard-and-fast, inexpugnable, set, settled, stableWords Related to certain nonadjustable, noncancelable, nonnegotiable, unchangeable; constant, steady, unchanging, uniform, unwavering; definite, exact, explicit, specific; given, stated, stipulated; dependable, good, reliable, responsible, safe, solid, sure, tried, tried-and-true, true, trustworthy, trustyNear Antonyms of certain adjustable, changeable, negotiable; indefinite, open-ended, unspecified; capricious, changeful, flickery, fluctuating, fluid, inconstant, mercurial, mutable, temperamental, uncertain, unpredictable, unsettled, unstable, unsteady, variable, volatile

  4. 4 impossible to avoid or evade as he got older, the athlete began to feel the certain effects of the aging process on his body Synonyms of certain inevitable, ineluctable, ineludible, inescapable, necessary, sure, unavoidable, unescapableWords Related to certain decided, definite, settled; likely, possible, probable; destined, fated, foreordained, predestined, predetermined, preordained; inexorable, relentless, unremitting, unstoppableNear Antonyms of certain preventable (also preventible); doubtful, dubious, questionable, shaky, unclear; undecided, unsettled; undependable, unreliable; improbable, unlikelyAntonyms of certain avoidable, evadable, uncertain, unsure

  5. 5 not likely to fail chicken soup is grandma's certain cure for pretty much whatever ails you Synonyms of certain can't-miss, infallible, fail-safe, sure, surefire, unfailingWords Related to certain dependable, reliable; deadly, unerringNear Antonyms of certain doubtful, questionable, uncertainAntonyms of certain fallible

  6. 6 not capable of being challenged or proved wrong up to this point there's been no certain evidence that a crime has been committed Synonyms of certain accomplished, irrefutable, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefragable, positive, sure, unanswerable, unarguable, unchallengeable, undeniable, unquestionableWords Related to certain unambiguous, unequivocal; absolute, clear, conclusive, decisive, definite, hands-down; uncontested, uncontradicted, undisputed, unquestionedNear Antonyms of certain controversial, debated, disputed; doubtful, dubious, iffy, inconclusive, indecisive, uncertain; ambiguous, equivocal; academic (also academical), hypothetical, speculative, theoretical (also theoretic)Antonyms of certain answerable, arguable, contradictable, controvertible, debatable, disputable, doubtable, moot, negotiable, problematic (also problematical), questionable, refutable

Synonym Discussion of certain

sure, certain, positive, cocksure mean having no doubt or uncertainty. sure usually stresses the subjective or intuitive feeling of assurance.
    • felt sure that I had forgotten something
certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence.
    • police are certain about the cause of the fire
positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it.
    • I'm positive that's the person I saw
cocksure implies presumptuous or careless positiveness.
    • you're always so cocksure about everything


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