uncertainty

noun

un·​cer·​tain·​ty ˌən-ˈsər-tᵊn-tē 

1

: the quality or state of being uncertain : doubt

2

: something that is uncertain

Synonyms

• distrust
• distrustfulness
• doubt
• dubiety
• dubitation [archaic]
• incertitude
• misdoubt
• misgiving
• mistrust
• mistrustfulness
• query
• reservation
• skepticism
• suspicion

Choose the Right Synonym for uncertainty

uncertainty, doubt, dubiety, skepticism, suspicion, mistrust mean lack of sureness about someone or something.

uncertainty may range from a falling short of certainty to an almost complete lack of conviction or knowledge especially about an outcome or result.

assumed the role of manager without hesitation or uncertainty

doubt suggests both uncertainty and inability to make a decision.

plagued by doubts as to what to do

dubiety stresses a wavering between conclusions.

felt some dubiety about its practicality

skepticism implies unwillingness to believe without conclusive evidence.

an economic forecast greeted with skepticism

suspicion stresses lack of faith in the truth, reality, fairness, or reliability of something or someone.

regarded the stranger with suspicion

mistrust implies a genuine doubt based upon suspicion.

had a great mistrust of doctors

Examples of uncertainty in a Sentence

There is some uncertainty about the company's future.

He accepted the position without hesitation or uncertainty.

Recent Examples on the Web

Many consumers are taking active steps to protect their privacy, driven by distrust of certain websites and uncertainty around how data is being used. —Amit Jhawar, Forbes.com, 9 May 2025

But the economic uncertainty surrounding Trump's tariff plans remains pronounced, increasing speculation about whether potential off ramps are imminent or trade wars could ramp up again with various nations. —Zac Anderson, USA Today, 9 May 2025

Other Asian countries, like Vietnam, which will be subject to high (but still lower-than-China) tariff rates, may benefit from the uncertainty. —Kate Nishimura, Sourcing Journal, 9 May 2025

But that uncertainty is not undercutting Paramount’s ambitions. —Alex Weprin, HollywoodReporter, 9 May 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing uncertainty

• Heisenberg uncertainty principle
• uncertainty principle

Rhymes for uncertainty

• certainty

Kids Definition

uncertainty

noun

un·​cer·​tain·​ty ˌən-ˈsərt-ᵊn-tē 

1

: lack of certainty

2

: something that is uncertain