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Adjective: uncertain  ,ún'sur-t(u)n
  1. Lacking or indicating lack of confidence or assurance
    "uncertain of his convictions"; "moving with uncertain steps"; "an uncertain smile"; "touched the ornaments with uncertain fingers";
    - unsure, incertain [non-standard]
  2. Not established beyond doubt; still undecided or unknown
    "a manuscript of uncertain origin"; "plans are still uncertain"; "changes of great if uncertain consequences"; "without further evidence his story must remain uncertain"; "an uncertain future";
    - unsure
  3. Not established or confirmed
    "his doom is as yet uncertain";
    - unsealed
  4. Not certain to occur; not inevitable
    "everything is uncertain about the army"; "the issue is uncertain"
  5. Subject to change
    "the weather is uncertain";
    - changeable, unsettled
  6. Not consistent or dependable
    "an uncertain recollection of events"; "a gun with a rather uncertain trigger"
  7. Ambiguous (especially in the negative)
    "she spoke in no uncertain terms"

See also: ambiguous, ambivalent, assurance, authority, cert [Brit, informal], certainty, chancy, confidence, contingent, dead cert [Brit, informal], doubtful, dubious, flakey [informal], flaky [informal], flukey [informal], fluky [informal], foregone conclusion, groping, iffy, indefinite, indeterminate, self-assurance, self-confidence, sure thing, sureness, undependable, undetermined, unpredictable, unreliable, up in the air, variable

Antonym: certain

Encyclopedia: Uncertain, Texas