What is another word for insincere?
Pronunciation: [ˌɪnsɪnsˈi͡ə] (IPA) 
Insincerity can be expressed in various ways, using a multitude of synonyms to convey the same meaning. Some of the most commonly used synonyms for insincere include phoney, deceitful, hypocritical, fake, disingenuous and duplicitous. Other options include insidious, fraudulent, treacherous, two-faced, unreliable and untrustworthy. Each of these words perfectly describes someone who is not genuine, who operates under false pretences or who deliberately misleads others. Whether in professional or personal settings, it's important to be able to recognise insincerity and avoid those who display it in order to maintain trust and healthy relationships.
