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.

Rossini’s devotion, undoubtedly sincere, was never permitted to cloud his humor.

From The Wall Street Journal • May 15, 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

"I would like to offer my sincere apologies to everyone involved."

From BBC • May 13, 2026

Blasting from my car speaker, Dr. Becky sounds sincere to the point of tearful.

From Slate • May 10, 2026

His manner as he bestowed a tip suggested generous good-nature, a wish to give pleasure, based on physical well-being and sincere kindliness of heart.

From "Blink" by Malcolm Gladwell

Vocabulary lists containing sincere

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