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English adjective: uncertain

1. uncertain lacking or indicating lack of confidence or assurance


SamplesUncertain of his convictions.
Unsure of himself and his future.
Moving with uncertain (or unsure) steps.
An uncertain smile.
Touched the ornaments with uncertain fingers.


Synonymsincertain, unsure


Similarambivalent, doubtful, dubious, groping


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


Antonymssure, certain

2. uncertain not established beyond doubt; still undecided or unknown


SamplesAn uncertain future.
A manuscript of uncertain origin.
Plans are still uncertain.
Changes of great if uncertain consequences.
Without further evidence his story must remain uncertain.


Similarindefinite, up in the air


See alsoindeterminate, undetermined


Attributecertainty, foregone conclusion, sure thing


Antonymscertain

3. uncertain not established or confirmed


SamplesHis doom is as yet unsealed.


Synonymsunsealed


Antonymssealed, certain

4. uncertain not certain to occur; not inevitable


SamplesEverything is uncertain about the army.
The issue is uncertain.


Similarchancy, contingent, flukey, fluky, iffy, up in the air


See alsounpredictable


Antonymssure, certain

5. uncertain subject to change


SamplesA changeable climate.
The weather is uncertain.
Unsettled weather with rain and hail and sunshine coming one right after the other.


Synonymschangeable, unsettled


Similarvariable


Antonymsinvariable

6. uncertain not consistent or dependable


SamplesAn uncertain recollection of events.
A gun with a rather uncertain trigger.


Similarundependable, unreliable


Antonymsdependable, reliable

7. uncertain ambiguous (especially in the negative)


SamplesShe spoke in no uncertain terms.


Similarambiguous


Antonymsunambiguous









Based on WordNet 3.0 copyright © Princeton University.
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