Synonyms for certain
ˈsɜr tncer·tain

WiktionaryRate these synonyms:2.3 / 3 votes

1. certainadjective

   Antonyms:
   uncertain

2. certainadjective

   Sure, positive, not doubting.

   Certain people are good at running.

   Antonyms:
   uncertain

English Synonyms and AntonymsRate these synonyms:2.0 / 1 vote

1. certain

   That is authentic which is true to the facts; that is genuine which is true to its own claims; as, authentic history; genuine money.

   A 'genuine' work is one written by the author whose name it bears; an 'authentic' work is one which relates truthfully the matters of which it treats. For example, the apocryphal Gospel of St. Thomas is neither 'genuine' nor 'authentic.' It is not 'genuine,' for St. Thomas did not write it; it is not 'authentic,' for its contents are mainly fables and lies.

   Trench On the Study of Words lect. vi, p. 189. [W. J. Widdleton]

   Authentic is, however, used by reputable writers as synonymous with genuine, tho usually where genuineness carries a certain authority. We speak of accepted conclusions, certain evidence, current money, genuine letters, a legitimate conclusion or legitimate authority, original manuscripts, real value, received interpretation, sure proof, a true statement, a trustworthy witness, a veritable discovery.

   Synonyms:
   accepted, accredited, authentic, authoritative, authorized, current, genuine, legitimate, original, real, received, reliable, sure, true, trustworthy, veritable

   Antonyms:
   apocryphal, baseless, counterfeit, disputed, exploded, fabulous, false, fictitious, spurious, unauthorized

Complete Dictionary of Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. certain

   Synonyms:
   true, fixed, regular, established, incontrovertible, undoubtful, indubitable, infallible, unmistakable, sure, unfailing, real, actual, undeniable, positive, convinced, assured

   Antonyms:
   uncertain, dubious, exceptional, irregular, casual, occasional, questionable, doubtful, vacillating, undecided, uncertain

Princeton's WordNetRate these synonyms:2.0 / 2 votes

1. certain(a)adjective

   definite but not specified or identified

   "set aside a certain sum each week"; "to a certain degree"; "certain breeds do not make good pets"; "certain members have not paid their dues"; "a certain popular teacher"; "a certain Mrs. Jones"

   Antonyms:
   undependable, flukey, unreliable, contingent, iffy, chancy, uncertain, careless, up in the air, indefinite, fluky

2. certain(p), sureadjective

   having or feeling no doubt or uncertainty; confident and assured

   "felt certain of success"; "was sure (or certain) she had seen it"; "was very sure in his beliefs"; "sure of her friends"

   Antonyms:
   iffy, unreliable, chancy, undependable, flukey, careless, fluky, up in the air, uncertain, contingent, indefinite

3. certain(p)adjective

   established beyond doubt or question; definitely known

   "what is certain is that every effect must have a cause"; "it is certain that they were on the bus"; "his fate is certain"; "the date for the invasion is certain"

   Antonyms:
   undependable, indefinite, flukey, up in the air, chancy, uncertain, iffy, unreliable, fluky, careless, contingent

4. certain, sureadjective

   certain to occur; destined or inevitable

   "he was certain to fail"; "his fate is certain"; "In this life nothing is certain but death and taxes"- Benjamin Franklin; "he faced certain death"; "sudden but sure regret"; "he is sure to win"

   Synonyms:
   certain(p), sealed, certain(a), trusted, indisputable, sure

   Antonyms:
   indefinite, fluky, contingent, flukey, undependable, iffy, unreliable, careless, chancy, uncertain, up in the air

5. sealed, certainadjective

   established irrevocably

   "his fate is sealed"

   Synonyms:
   certain(p), sealed, sure, certain(a), plastered

   Antonyms:
   up in the air, indefinite, careless, unreliable, iffy, undependable, uncertain, flukey, chancy, fluky, contingent

6. certain, sureadjective

   reliable in operation or effect

   "a quick and certain remedy"; "a sure way to distinguish the two"; "wood dust is a sure sign of termites"

   Synonyms:
   certain(p), sealed, certain(a), trusted, indisputable, sure

   Antonyms:
   chancy, unreliable, flukey, careless, iffy, up in the air, fluky, undependable, contingent, uncertain, indefinite

7. certain, sureadjective

   exercising or taking care great enough to bring assurance

   "be certain to disconnect the iron when you are through"; "be sure to lock the doors"

   Synonyms:
   certain(p), sealed, certain(a), trusted, indisputable, sure

   Antonyms:
   fluky, indefinite, chancy, iffy, undependable, careless, up in the air, unreliable, contingent, flukey, uncertain

Editors ContributionRate these synonyms:0.0 / 0 votes

1. sure

   he was certain that he had got the question correct.

   Submitted by anonymous on October 5, 2020  

2. confident

   i was certain i could win the race.

   Submitted by anonymous on January 11, 2021  

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. certainadjective

   Synonyms:
   indubitable, unquestionable, indisputable, undeniable, incontestable, uncontrovertible, unquestioned, undisputed, undoubted, absolute, positive, plain, past dispute, beyond all question, sure as fate, sure as a gun, clear as day, not doubtful

2. certainadjective

   Synonyms:
   sure, assured, confident, undoubting, fully convinced

3. certainadjective

   Synonyms:
   unfailing, infallible, never-failing

4. certainadjective

   Synonyms:
   actual, real, existing

5. certainadjective

   Synonyms:
   settled, determinate, fixed, stated, constant

6. certainadjective

   Synonyms:
   one, some, particular

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. certainadjective

   Synonyms:
   assured, confident, convinced, satisfied, undoubting, undeniable, irrefutable, indubitable, incontrovertible, incontestable, sure, inevitable, unavoidable, unfailing, infallible, inerrable, fixed, stated, specified

   Antonyms:
   indefinite, uncertain, doubtful, uncertain

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "certain":

   some, sure, specific, selected, particular, few, confident, convinced, determined, several, individual, safe, specified, number, secure, given

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How to use certain in a sentence?

1. Raul Grijalva:

   There has to be certain decorum, you don’t do that.

2. Andy Slavitt:

   Israel began their vaccination process a little bit ahead of us, so I think in many respects, we've been looking to them -- and to a certain extent, the UK -- for what we can expect, as well as the people who participated in the original clinical trials of the vaccines in 2020, those three things together, generally speaking, give us a sense of what to predict for the future.

3. Mike Muller:

   It's always been a heavily engineering-focused company, so it's fairly open, transparent and at times a little brutal because I guess we are a bunch of slightly autistic engineers who just want to do the right thing, it's always been' Let's agree what is the right thing to do driven by a certain amount of data', rather than it being about politics.

4. Amesh Adalja:

   That’s why you have to take certain precautions when you are working with a cow in the birthing process to make sure that you don’t inhale the material from the birth that may contain the Q fever bacteria.

5. Booker T. Washington:

   There is a class of colored people who make a business of keeping the troubles, the wrongs, and the hardships of the Negro race before the public. Some of these people do not want the Negro to lose his grievances, because they do not want to lose their jobs. There is a certain class of race-problem solvers who don't want the patient to get well.