English dictionary



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English adjective: certain

1. certain definite but not specified or identified


SamplesSet 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.


Similardefinite


Antonymsindefinite

2. certain having or feeling no doubt or uncertainty; confident and assured


SamplesFelt certain of success.
Was sure (or certain) she had seen it.
Was very sure in his beliefs.
Sure of her friends.


Synonymssure


Similarconfident, convinced, positive


Attributeassurance, authority, certainty, confidence, self-assurance, self-confidence, sureness


Antonymsincertain, uncertain, unsure

3. certain established beyond doubt or question; definitely known


SamplesWhat 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.


Similardefinite, indisputable, sure, sure as shooting


Attributecertainty, foregone conclusion, sure thing


Antonymsuncertain

4. certain certain to occur; destined or inevitable


SamplesHe was certain to fail.
His fate is certain.
In this life nothing is certain but death and taxes.
He faced certain death.
Sudden but sure regret.
He is sure to win.


Synonymssure


Similarbound, destined, doomed, fated, foreordained, in for, predestinate, predestined


See alsopredictable


Antonymsuncertain

5. certain established irrevocably


SamplesHis fate is sealed.


Synonymssealed


Antonymsunsealed, uncertain

6. certain reliable in operation or effect


SamplesA quick and certain remedy.
A sure way to distinguish the two.
Wood dust is a sure sign of termites.


Synonymssure


Similardependable, reliable


Antonymsundependable, unreliable

7. certain exercising or taking care great enough to bring assurance


SamplesBe certain to disconnect the iron when you are through.
Be sure to lock the doors.


Synonymssure


Similarcareful


Antonymscareless









Based on WordNet 3.0 copyright © Princeton University.
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