Synonyms of uncertainty

uncertainty

noun

ˌən-ˈsər-tᵊn-tē 

as in doubt

a feeling or attitude that one does not know the truth, truthfulness, or trustworthiness of someone or something

uncertainty about her job prospects has her worried

Synonyms & Similar Words

• doubt
• skepticism
• suspicion
• distrust
• disbelief
• concern
• mistrust
• incertitude
• misgiving
• dubiety
• reservation
• distrustfulness
• query
• dubitation
• anxiety
• misdoubt
• mistrustfulness
• incredulity
• paranoia
• unbelief
• wariness
• tremor
• qualm
• compunction
• scruple
• niggle

Antonyms & Near Antonyms

• confidence
• belief
• trust
• certainty
• conviction
• assurance
• surety
• faith
• certitude
• sureness
• credence

Synonym Chooser

How does the noun uncertainty differ from other similar words?

Some common synonyms of uncertainty are doubt, dubiety, mistrust, skepticism, and suspicion. While all these words 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

When could doubt be used to replace uncertainty?

The words doubt and uncertainty are synonyms, but do differ in nuance. Specifically, doubt suggests both uncertainty and inability to make a decision.

plagued by doubts as to what to do

Where would dubiety be a reasonable alternative to uncertainty?

Although the words dubiety and uncertainty have much in common, dubiety stresses a wavering between conclusions.

felt some dubiety about its practicality

When might mistrust be a better fit than uncertainty?

While in some cases nearly identical to uncertainty, mistrust implies a genuine doubt based upon suspicion.

had a great mistrust of doctors

When would skepticism be a good substitute for uncertainty?

While the synonyms skepticism and uncertainty are close in meaning, skepticism implies unwillingness to believe without conclusive evidence.

an economic forecast greeted with skepticism

In what contexts can suspicion take the place of uncertainty?

The synonyms suspicion and uncertainty are sometimes interchangeable, but suspicion stresses lack of faith in the truth, reality, fairness, or reliability of something or someone.

regarded the stranger with suspicion

Example Sentences

Recent Examples of uncertainty

Rising college costs and uncertainty about the job market have left many Gen Z students rethinking the path forward. — Alice Barlow, Fortune, 26 Sep. 2026

What Wells-Wonsley most wanted to know—as any parent who loses a child under a cloud of uncertainty would—was how her son died. — Cristian Farias, New Yorker, 26 Sep. 2026

Sophisticated technology cannot substitute for experienced people, functioning networks, practiced relationships, and institutions capable of making defensible decisions under uncertainty. — Daniel Jernigan, STAT, 26 Sep. 2026

The regulatory uncertainty reminds some finance veterans of the time before Dodd-Frank. — Michael McCann, Sportico.com, 26 Sep. 2026