Definitions

insincere

[in-sin-seer] / ˌɪn sɪnˈsɪər /

ADJECTIVE

dishonest, pretended

Synonyms

STRONGEST

deceitful devious disingenuous evasive false hypocritical phony untruthful

WEAK

ambidextrous backhanded deceptive dissembling dissimulating double double-dealing duplicitous faithless fake hollow lying mendacious perfidious pretentious put on shifty slick sly snide two-faced unfaithful untrue

Antonyms

STRONGEST

actual direct forthright frank genuine honest just open real reliable sincere straight straightforward trustworthy truthful upright

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.

Some students questioned this approach, saying it seemed insincere to say something just to appease someone.

From The Wall Street Journal • Jun. 4, 2026

As impressed with “The Drama” as I am, it would be insincere not to look at Borgli’s film in a wider context.

From Salon • Apr. 3, 2026

Peppering in phrases like “love bombing” and “disassociative” feels insincere.

From Los Angeles Times • Oct. 30, 2025

That promise, insincere from the start, looks hollower every day.

From Slate • Jun. 16, 2025

Why does this phrase make us think of insincere widows? sickening thud.

From "Woe Is I" by Patricia T. O'Conner

Vocabulary lists containing insincere

The New SAT: Words to Capture Tone

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The SAT: Words to Capture Tone, List 6

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ACT Reading Test: Words to Capture Tone, List 4

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