- 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 beyond doubt; still undecided or unknown;
"an 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"
- not established or confirmed;
"his doom is as yet unsealed"
- not certain to occur; not inevitable;
"everything is uncertain about the army"
"the issue is uncertain"
- subject to change;
"a changeable climate"
"the weather is uncertain"
"unsettled weather with rain and hail and sunshine coming one right after the other"
- not consistent or dependable;
"an uncertain recollection of events"
"a gun with a rather uncertain trigger"
- ambiguous (especially in the negative);
"she spoke in no uncertain terms"
