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uncertain

[ uhn-sur-tn ]
/ ʌnˈsɜr tn /
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adjective

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Origin of uncertain

Middle English word dating back to 1250–1300; see origin at un-1, certain
1. Uncertain, insecure, precarious imply a lack of predictability. That which is uncertain is doubtful or problematical; it often involves danger through an inability to predict or to place confidence in the unknown: The time of his arrival is uncertain. That which is insecure is not firm, stable, reliable, or safe, and hence is likely to give way, fail, or be overcome: an insecure foundation, footing, protection. Precarious suggests great susceptibility to failure, or exposure to imminent danger: a precarious means of existence.
un·cer·tain·ly, adverbun·cer·tain·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for uncertain

uncertain
/ (ʌnˈsɜːtən) /

adjective

not able to be accurately known or predictedthe issue is uncertain
(when postpositive, often foll by of) not sure or confident (about)a man of uncertain opinion
not precisely determined, established, or decideduncertain plans
not to be depended upon; unreliablean uncertain vote
liable to variation; changeablethe weather is uncertain
in no uncertain terms
  1. unambiguously
  2. forcefully
uncertainly, adverbuncertainness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with uncertain

uncertain

see in no uncertain terms.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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