Meaning of the word insincere in English

What does insincere mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

insincere

US /ˌɪn.sɪnˈsɪr/
UK /ˌɪn.sɪnˈsɪər/

Adjective

not expressing genuine feelings; hypocritical

Example:
His apology felt very insincere, as if he didn't really mean it.
She gave a polite but ultimately insincere smile.