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hard to believe

ADJECTIVE

questionable

Synonyms

STRONGEST

ambiguous arguable controversial debatable dubious problematic suspicious unproven vague

WEAK

apocryphal contingent controvertible cryptic disputable dubitable enigmatic equivocal fishy hypothetical iffy indecisive indefinite indeterminate moot mysterious obscure occult open to doubt open to question oracular paradoxical problematical provisional shady suspect unconfirmed undefined under advisement under examination unreliable unsettled

Antonyms

STRONGEST

certain clear definite incontrovertible indubious sure trustworthy trusty undoubted unquestionable

WEAK

indisputable proven

ADJECTIVE

unsubstantiated

Synonyms

STRONGEST

debatable dubious unsupported

WEAK

arguable controversial disputable doubtful dubitable fishy iffy indefinite open to doubt open to question suspect suspicious uncertain unconfirmed uncorroborated

Antonyms

STRONGEST

certain sure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s good that Americans are spending less on healthcare, but it’s also hard to believe, given long-running trends in these expenses rising steadily year after year.

From MarketWatch • May 28, 2026

"It's hard to believe this is real. We're just all still figuring it out."

From Barron's • May 19, 2026

It’s hard to believe, as Matt Damon noted in his monologue in this week’s “Saturday Night Live,” that the actor of this summer’s “The Odyssey” has only guest hosted three times during his lengthy career.

From Los Angeles Times • May 10, 2026

It is not at all hard to believe that Melania would make a statement designed to salvage her own reputation, even if it simultaneously sells out her husband’s.

From Slate • Apr. 10, 2026

And let me write you something hard to believe.

From "The Heart is a Lonely Hunter" by Carson McCullers

hard to believe

Example Sentences

Related Words