Synonyms of certain in English:

certain


See definition of certain

adjective

1‘I'm certain he's guilty’

SYNONYMS

sure, confident, positive, convinced, in no doubt, unshaken in one's belief, secure in one's belief, easy in one's mind, satisfied, assured, persuaded

have no doubt, not question, hold the unwavering view

ANTONYMS

doubtful

2‘it is certain that more changes are in the offing’

SYNONYMS

unquestionable, sure, definite, beyond question, not in question, not in doubt, beyond doubt, unequivocal, indubitable, undeniable, irrefutable, indisputable, incontrovertible, incontestable, obvious, patent, manifest, evident, plain, clear, transparent, palpable, unmistakable, conclusive, recognized, confirmed, accepted, acknowledged, undisputed, undoubted, unquestioned, unchallenged, uncontested

there are no two ways about it

informal as sure as eggs is eggs

ANTONYMS

unthinkable, doubtful, possible

3‘they are certain to win’

SYNONYMS

sure, very likely, bound, destined, predestined, fated, trusted, assured of doing something

British informal nailed on

ANTONYMS

unlikely

4‘Pakistan's lead of 380 runs meant certain success’

SYNONYMS

inevitable, assured, destined, predestined, fated

reliable, unavoidable, inescapable, automatic, bound to happen, sure to happen, unpreventable, inexorable, ineluctable, predictable, necessary, out of one's hands

informal in the bag

5‘there is no certain cure for this’

SYNONYMS

reliable, dependable, trustworthy, sound, foolproof, tested, tried and tested, effective, efficacious, guaranteed, sure, unfailing, infallible, unerring

informal sure-fire

dated sovereign

ANTONYMS

unreliable

6‘a certain sum of money is required’

SYNONYMS

determined, definite, fixed, established, precise, defined, exact, explicit, express

ANTONYMS

undefined

7‘a certain lady that you know’

SYNONYMS

particular, specific, individual, special, especial

ANTONYMS

nameless, undifferentiated, general

8‘to a certain extent that is true’

SYNONYMS

moderate, modest, medium, middling, unexceptional

tolerable, passable, adequate, fair, decent, acceptable

limited, small

ANTONYMS

great


Phrases

    make certain

      ‘make certain that storage and access areas are of adequate size for any power equipment used’

      SYNONYMS

      make sure, ensure, see to it

      confirm, check, verify, corroborate, establish