uncertain

1. Lacking or indicating lack of confidence or assurance (synset 300338302)
   "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"
   tells us about:

   • certainty - the state of being certain
   • assurance, authority, confidence, self-assurance, self-confidence, sureness - freedom from doubt; belief in yourself and your abilities
   similar to:

   • ambivalent - uncertain or unable to decide about what course to follow
   • doubtful, dubious - fraught with uncertainty or doubt
   • groping - acting with uncertainty or hesitance or lack of confidence
   same as: incertain, unsure
2. Not established beyond doubt;
   Still undecided or unknown (synset 300337066)
   "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"
   also: indeterminate, undetermined - not precisely determined or established; not fixed or known in advance
   tells us about: certainty, foregone conclusion, sure thing - something that is certain
   similar to:

   • indefinite - not decided or not known
   • up in the air - very uncertain
3. Not established or confirmed (synset 302094595)
   "his doom is as yet unsealed"
   same as: unsealed
4. Not certain to occur;
   Not inevitable (synset 300342303)
   "everything is uncertain about the army"; "the issue is uncertain"
   also: unpredictable - not capable of being foretold
   similar to:

   • chancy, flukey, fluky, iffy - subject to accident or chance or change
   • contingent - uncertain because of uncontrollable circumstances
   • up in the air - not yet determined
5. Subject to change (synset 302514603)
   "a changeable climate"; "the weather is uncertain"; "unsettled weather with rain and hail and sunshine coming one right after the other"
   similar to: variable - liable to or capable of change
   same as: changeable, unsettled
6. Not consistent or dependable (synset 300728966)
   "an uncertain recollection of events"; "a gun with a rather uncertain trigger"
   similar to: undependable, unreliable - not worthy of reliance or trust
7. Ambiguous (especially in the negative) (synset 300104366)
   "she spoke in no uncertain terms"
   similar to: ambiguous - having more than one possible meaning

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