1
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
2
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
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of uncertain
To be sure, the path forward for interest rates remains highly uncertain.
—
Max Zahn,
ABC News,
2 July 2026
Companion features that simulate romance, intimacy, or devotion should be disabled for minors and limited by default when age is uncertain.
—
Ryan McBain,
STAT,
2 July 2026
In the oral arguments, conservative Supreme Court justices asked about the possibility of grace periods making an election’s outcome uncertain for weeks or months.
—
Jamie Rowen,
The Conversation,
2 July 2026
The destiny of the city on the hill before all eyes—that was uncertain.
—
David Frum,
The Atlantic,
1 July 2026
See All Example Sentences for uncertain
Max Zahn,
ABC News,
2 July 2026
Companion features that simulate romance, intimacy, or devotion should be disabled for minors and limited by default when age is uncertain.
—
Ryan McBain,
STAT,
2 July 2026
In the oral arguments, conservative Supreme Court justices asked about the possibility of grace periods making an election’s outcome uncertain for weeks or months.
—
Jamie Rowen,
The Conversation,
2 July 2026
The destiny of the city on the hill before all eyes—that was uncertain.
—
David Frum,
The Atlantic,
1 July 2026
See All Example Sentences for uncertain
Recent Examples of Synonyms for uncertain
Adjective
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Related Stories Set in 1948 Malaya in the volatile years that followed the end of World War II, the film traces a Malay soldier and a British soldier who are left behind after the British military withdraws.
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While the rally continued into early 2026, trade soon turned volatile.
Adjective
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Standards are high at the Etihad Stadium after 10 years of Guardiola and Manchester City is counting on Maresca being the right man to keep this going even if many of the club’s own supporters are unsure.
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People are unsure about the industry for good reason, with everything happening with AI and in the world.
Adjective
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Analysts expect gas prices to continue falling but remain unpredictable due to geopolitical tensions.
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Your personal life could feel crowded, unpredictable and emotionally overwhelming, Scorpio.
Adjective
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When Axsome went public in 2015, Wall Street was skeptical and the company’s stock puttered along under $10 for years.
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Contrary to what the public has been led to believe, America’s Founding Fathers were skeptical and anxious about democracy.
Adjective
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Rigorous, blustery winter; winding sleety spring; hot, moist enervating summer; changeful autumn with its dog-days; these are absolutely unknown.
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Hers is the kind of face that inspires directors to tight framing — gleaming, as if smoothed from marble, and yet somehow pliant, changeful.
Adjective
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Large-scale events involve tabletop exercises with law enforcement, fire departments, emergency managers and venue officials running through countless scenarios — evacuations, suspicious packages, drones and crowd surges.
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Residents who witness suspicious activity can contact non-emergency dispatch at 503-629-0111 or call 911 when appropriate.
Adjective
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The conservation team will secure unstable paint before cleaning the works with fiber lasers.
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Most of the people with the dragons are either unstable or idiots, or both.
Adjective
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Avoid abrupt temperature changes, frequent relocation, and inconsistent watering.
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Broadcasters and platforms needed reliable ways to deliver streams to millions of viewers across inconsistent internet connections.
Cite this Entry
“Uncertain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/uncertain. Accessed 6 Jul. 2026.
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