Synonyms & Antonyms of uncertainty

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 for uncertainty

Words Related to uncertainty

Near Antonyms for uncertainty

Antonyms for uncertainty

See the Dictionary Definition 

Frequently Asked Questions About uncertainty

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

Keep scrolling for more

Learn More About uncertainty

Time Traveler for uncertainty

Time Traveler

The first known use of uncertainty was in the 14th century

See more words from the same century

Thesaurus Entries Near uncertainty




See More Nearby Entries 

Cite this Entry

“Uncertainty.” Thesaurus, Merriam-Webster, Accessed 21 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on uncertainty

Nglish: Translation of uncertainty for Spanish Speakers

Britannica English: Translation of uncertainty for Arabic Speakers


Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Spell It

Can you spell these 10 commonly misspelled words?


Anagram puzzles meet word search.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!