What does insincere mean?
Insincere means not sincere: it describes words, attitudes, or behaviour that are false, feigned, or intended to create a misleading impression. An insincere apology may sound polite while failing to express genuine regret, and an insincere compliment may conceal criticism or self-interest. The word is especially useful when discussing a gap between outward expression and actual feeling or intention. It is often used with social and professional contexts, such as apologies, praise, friendliness, concern, and reassurance. Although “insincere” can describe a person, it more commonly modifies an utterance, gesture, or attitude. Its opposite is “sincere,” while related words include “insincerely” and “insincerity.” The term conveys moral or interpersonal disapproval more strongly than a neutral description such as “artificial,” and it should not be used where genuine uncertainty or a polite but limited response is intended.
adjectiveNot sincere or genuine; insincere behaviour or speech expresses feelings or intentions falsely or insincerely. It describes words, actions, or people whose apparent friendliness, agreement, or concern is not truthful.
- Not sincere or genuine; expressing false feelings, intentions, or approval.
"His insincere apology did little to repair the damage."
"The politician's insincere assurances did not convince the reporters."
"She gave an insincere smile rather than admitting that she was disappointed."
An insincere compliment can sound like praise while quietly delivering an insult.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does insincere come from?
The word comes from Latin insincerus, meaning false, not genuine, or not candid. It was formed from the negative prefix in- and sincerus, the Latin adjective meaning clean, pure, or sincere. English borrowed it in the 17th century, and related forms such as “sincerity” and “sincerely” developed from the same Latin root. The Roman writer Cicero famously used “sincerus” in discussing candour and integrity, although the exact date of every English borrowing is less certain.
Related word forms
How insincere is actually used
Commonly used to describe speech, compliments, apologies, concern, and friendliness that are false or merely performed. It generally conveys disapproval and implies a contrast between outward behaviour and inward feeling.
Easily confused with insincere
Sincere means truthful and genuine, whereas insincere means false or merely pretended.
Disinterested means impartial or not personally involved, while insincere means not genuine in expression or intention.