adj. not known for sure; not definite; not knowing with certainty; not sure; likely to change; not predictable
The future of the program is uncertain.
The future of the program is uncertain.
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The king was skeptical about the uncertain news.
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The old building's fate is uncertain.
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doubtful; indefinite; obscure; undecided
certain; definite; positive
3 syllables
un-cer-tain
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