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. Emma Ross:

   In extreme environments the brain has a very protective role and is the limiting factor for performance, it doesn't allow you to move at a certain speed or pedal at certain power. It's not traditional fatigue because your muscles tired -- they are fine, it's your brain saying no.

2. Ashish Jha:

   It was good to have the President address the pandemic and the crisis that we are all in, i like the fact he acknowledged the importance of wearing masks and that he acknowledged things will get worse. Unfortunately, there was also a certain amount of misinformation about how great America is doing.

3. Mary McNamara:

   We are long past the point of saying there are certain things that should not be included in reality shows. There are no rules.

4. Nav Athwal:

   We are very eager to one day be able to open our platform to anybody that wants to put $1,000 or a couple hundred bucks into real estate, because let's face it, real estate is one of the best ways to build wealth and you shouldn't have to have a certain net worth to invest in real estate.

5. James Madison:

   All men having power ought to be distrusted to a certain degree.