sincere

[sin-seer] / sɪnˈsɪər /

ADJECTIVE

straightforward, honest

Synonyms

STRONGEST

candid earnest for real forthright genuine heartfelt outspoken real serious true trustworthy

WEAK

24-carat aboveboard actual artless bona fide dead-level dear devout faithful frank guileless honest-to-God honest-to-goodness like it is meant natural no-fooling no-nonsense on the level on the line on the up and up open plain pretensionless regular righteous saintly square sure-enough true-blue unaffected undesigning undissembled unfeigned unpretentious up-front wholehearted

Antonyms

STRONGEST

counterfeit deceitful devious dishonest false flippant insincere invalid untrustworthy

WEAK

tricky

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.

“The words I get from people are so sincere and so heartfelt, they’re not just fanboying or fangirling,” Brantley adds.

From Los Angeles Times • May 27, 2026

"I also take this opportunity to express my sincere gratitude to the government and people of India, the United States and all our supporters," he said.

From Barron's • May 27, 2026

"This is a heartbreaking incident and my sincere condolences go out to the young girl's loved ones," council leader George Finch said.

From BBC • May 26, 2026

As historian Rick Perlstein related in “Nixonland: The Rise of a President and the Fracturing of America,” Nixon’s anti-communist agit-prop, honed over many decades, was sincere — but it was only part of the story.

From Salon • May 14, 2026

Mr. Bhaer’s devotion was sincere, however likewise effective—for honesty is the best policy in love as in law.

From "Little Women" by Louisa May Alcott

Vocabulary lists containing sincere

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ACT Reading Test: Words to Capture Tone, List 1

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The New SAT: Words to Capture Tone

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