• IPA: /ʌnˈsɜːtən/


  1. Not certain; unsure.
    • Man, without the protection of a superior Being, […] is uncertain of everything that he hopes for.
  2. Not known for certain; questionable.
    Tomorrow's weather is uncertain.
  3. Not yet determined; undecided.
  4. Variable and subject to change.
  5. Fitful or unsteady.
    • 1914, Louis Joseph Vance, chapter III, in Nobody, New York, N.Y.: George H[enry] Doran Company, published 1915, OCLC 40817384 ↗:
      Turning back, then, toward the basement staircase, she began to grope her way through blinding darkness, but had taken only a few uncertain steps when, of a sudden, she stopped short and for a little stood like a stricken thing, quite motionless save that she quaked to her very marrow in the grasp of a great and enervating fear.
  6. Unpredictable or capricious.
    • 1808 February 21, Walter Scott, “(please specify the introduction or canto number, or chapter name)”, in Marmion; a Tale of Flodden Field, Edinburgh: Printed by J[ames] Ballantyne and Co. for Archibald Constable and Company, […]; London: William Miller, and John Murray, OCLC 270129616 ↗:
      O woman! in our hours of ease, / Uncertain, coy, and hard to please!
Antonyms Related terms Translations Translations Translations Translations Translations
  • German: unbeständig
  • Russian: непредсказу́емый
  1. (with "the") Something uncertain.

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