(ת') לא-בטוח, מפוקפק

adj. doubtful, not reliable, ambiguous, unsure, undecided

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Adjective
1. lacking or indicating lack of confidence or assurance; "uncertain of his convictions"; "unsure of himself and his future"; "moving with uncertain (or unsure) steps"; "an uncertain smile"; "touched the ornaments with uncertain fingers"
(synonym) unsure, incertain
(antonym) certain(p), sure
(similar) ambivalent
(attribute) certainty
2. not established beyond doubt; still undecided or unknown; "an uncertain future"; "a manuscript of uncertain origin"; "plans are still uncertain"; "changes of great if uncertain consquences"; "without further evidence his story must remain uncertain"
(antonym) certain(p)
(similar) indefinite
(see-also) indeterminate, undetermined
(attribute) certainty, sure thing, foregone conclusion
3. not established or confirmed; "his doom is as yet unsealed"
(synonym) unsealed
4. not firm or secure; "balancing three boxes in an uncertain pile"
(similar) insecure
5. not certain to occur; not inevitable; "everything is uncertain about the army"; "the issue is uncertain"
(antonym) certain, sure
(similar) chancy, fluky, flukey, iffy
(see-also) unpredictable
6. subject to change; "a changeable climate"; "the weather is uncertain"; "unsettled weather with rain and hail and sunshine coming one right after the other"
(synonym) changeable, unsettled
(similar) variable
7. not safe from danger or mishap; "faced an uncertain future"; "an unsure existence"
(synonym) unsure
(similar) insecure, unsafe
8. not consistent or dependable; "an uncertain recollection of events"; "a gun with a rather uncertain trigger"
(similar) unreliable, undependable
9. ambiguous (especially in the negative); "she spoke in no uncertain terms"
(similar) ambiguous

příd.jm. nejistý; nerozhodný

Przym. niepewny; niezdecydowany; niepewny; nieokreślony