Lacking or indicating lack of confidence or assurance.
subject to change; "a changeable climate"; "the weather is uncertain"; "unsettled weather with rain and hail and sunshine coming one right after the other"
especially in the negative "no uncertain," as in "spoke in no uncertain terms"
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"
not certain to occur; not inevitable; "everything is uncertain about the army"; "the issue is uncertain"
not consistent or dependable; "an uncertain recollection of events"; "a gun with a rather uncertain trigger"
not firm or secure; "balancing three boxes in an uncertain pile"
not safe from danger or mishap; "faced an uncertain future"; "an unsure existence"
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"
not established or confirmed; "his doom is as yet unsealed"
ambiguous (especially in the negative); "she spoke in no uncertain terms"
ambiguous (especially in the negative)
not established beyond doubt; still undecided or unknown
lacking or indicating lack of confidence or assurance