uncertain

英 [ʌn'sɜːt(ə)n; -tɪn] 美[ʌn'sɝtn]

• adj. 无常的；含糊的；靠不住的；迟疑不决的

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"

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"

3. not established or confirmed;

"his doom is as yet unsealed"

4. not firm or secure;

"balancing three boxes in an uncertain pile"

5. not certain to occur; not inevitable;

"everything is uncertain about the army"

"the issue is uncertain"

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"

7. not safe from danger or mishap;

"faced an uncertain future"

"an unsure existence"

8. not consistent or dependable;

"an uncertain recollection of events"

"a gun with a rather uncertain trigger"

9. ambiguous (especially in the negative);

"she spoke in no uncertain terms"