UNCERTAIN Synonyms: 104 Similar and Opposite Words

uncertain

adjective

ˌən-ˈsər-tᵊn

Definition of uncertain

as in volatile

likely to change frequently, suddenly, or unexpectedly the stifling heat would occasionally be relieved by an uncertain breeze

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in unsure

not feeling sure about the truth, wisdom, or trustworthiness of someone or something never uncertain of her political beliefs or judgment, she was a decisive and fearless leader

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of uncertain Theron, who plays Calypso in Nolan’s epic, said the response has been particularly encouraging at a time when the industry remains uncertain about the future of moviegoing. — Lilly Workneh, HollywoodReporter, 20 Sep. 2026 Sarauw said hoards were typically buried to safeguard wealth during uncertain times. — Andrea Margolis, FOXNews.com, 20 Sep. 2026 Lindsay Bryan-Podvin, a financial therapist and host of the Mind Money Balance podcast, explained that such indulgences can offer a predictable moment of control when so much else feels uncertain. — Tatiana Sataua, Fortune, 20 Sep. 2026 Optimistic, too, even about the future of show business in uncertain times. — Ben Mankiewicz, CBS News, 20 Sep. 2026 See All Example Sentences for uncertain

Recent Examples of Synonyms for uncertain

Adjective

Investors are facing volatile times in the stock market, but as of late, even safe-haven Treasurys are selling off, raising questions about what's next for the balanced portfolio.

— Darla Mercado, CFP®, CNBC, 23 Sep. 2026
In the digital asset industry, the conditions are more fluid and volatile than most, as markets shift and competitors appear and evolve.

— Andrei Grachev, Forbes.com, 23 Sep. 2026

Definition of volatile

Adjective

Patrick looked unsure of his dad’s abilities in this playful shot shared for Arnold’s 75th birthday in 2022.

— Stephanie Sengwe, PEOPLE, 18 Sep. 2026
Still, a $50,000 5-year CD won't be the best idea for most savers, especially those unsure of their capacity to keep the funds frozen in the account for the full term.

— Matt Richardson, CBS News, 17 Sep. 2026

Definition of unsure

Adjective

The new prices may also steer customers more toward bundles, which streaming service providers believe lead to fewer cancellations and help Disney manage the unpredictable ads market.

— Scharon Harding, ArsTechnica, 23 Sep. 2026
The open Atlantic Ocean presents a different kind of extreme — relentless, unpredictable and constantly changing — and that is exactly where Canada Goose belongs.

— Lisa Lockwood, Footwear News, 23 Sep. 2026

Definition of unpredictable

Adjective

Ellison, for his part, promised to release a minimum of 30 films per year theatrically, though many in the industry remain skeptical about how long the company can sustain that level of production.

— Winston Cho, HollywoodReporter, 21 Sep. 2026
Some seemed skeptical as the men performed the rainmaking ritual.

— Arkansas Online, Arkansas Online, 20 Sep. 2026

Definition of skeptical

Adjective

Rigorous, blustery winter; winding sleety spring; hot, moist enervating summer; changeful autumn with its dog-days; these are absolutely unknown.

— San Diego Union-Tribune, San Diego Union-Tribune, 1 Jan. 2023
Hers is the kind of face that inspires directors to tight framing — gleaming, as if smoothed from marble, and yet somehow pliant, changeful.

— Jordan Kisner Jack Davison, New York Times, 11 Oct. 2022

Definition of changeful

Adjective

Anyone who receives a suspicious call should hang up and report the activity to local law enforcement, police said.

— Garrett Behanna, CBS News, 21 Sep. 2026
Other issues Allen's attorneys are expected to argue before the appeals court are inconsistencies in how witnesses described the suspicious man near the trail, pointing to a sketch of a potential suspect that didn't look like Allen.

— ABC News, ABC News, 21 Sep. 2026