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Dictionary

un•cer•tain•ty

Pronunciation: (un-sûr'tn-tē), [key]
—n.,
—pl. -ties for 2.
1. the state of being uncertain; doubt; hesitancy: His uncertainty gave impetus to his inquiry.
2. an instance of uncertainty, doubt, etc.
3. unpredictability; indeterminacy; indefiniteness.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

uncertain

uncertainty principle

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