un·cer·tain adjective \ˌən-ˈsər-tən\
: not exactly known or decided : not definite or fixed
: not sure : having some doubt about something
: not definitely known
: not certain to occur : problematical <his success was uncertain>
a : not known beyond doubt : dubious <an uncertain claim>
b : not having certain knowledge : doubtful <remains uncertain about her plans>
c : not clearly identified or defined <a fire of uncertain origin>
— un·cer·tain·ly adverb
— un·cer·tain·ness \-tən-(n)əs\ noun
Examples of UNCERTAIN
- The time of departure is still uncertain.
- We are still uncertain of the truth.
- She remains uncertain about her plans.
- I'm uncertain about how to respond.
- The cause of the fire is uncertain.
- He has an uncertain temper.
- They face a financially uncertain future.
First Known Use of UNCERTAIN
Related to UNCERTAIN
- capricious, changeable, changeful, flickery, fluctuating, fluid, inconsistent, inconstant, mercurial, mutable, skittish, temperamental, fickle, unpredictable, unsettled, unstable, unsteady, variable, volatile
- certain, changeless, constant, immutable, invariable, predictable, settled, stable, stationary, steady, unchangeable, unchanging, unvarying
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