An insincere person often displays a lack of genuine emotion or authenticity in their interactions. They may say what others want to hear or manipulate their words to achieve personal gain, rather than expressing true feelings or intentions. This behavior can lead to mistrust and a sense of betrayal in relationships, as their actions do not align with their words. Ultimately, insincerity undermines the foundation of honest communication and connections.
An insincere person should not be trusted
Hypocritical.
It can depending on the person and it also depends if you are the one being unfaithful/ insincere or if your spouse is.
Your countenance belies your insincere request.
An insincere apology is no better than no apology. I noticed that she was insincere when she said the shirt that was too small for me looked good.
The word 'glib' means fluent but insincere.
He made a show of caring and wanting to help, but we knew he was insincere.
lacking sincerity; "a charming but thoroughly insincere woman"; "their praise was extravagant and insincere
Irresistible, Insecure, Insincere, Idiotic, Immaculate, Immature, Immovable, Idyllic, Imperfect ...
No.
yes
The negative of "sincere" is "insincere," which describes a lack of honesty or genuineness in feelings or expressions. An insincere person may say one thing while meaning another, often leading to distrust or misunderstanding. This term is often associated with deceitfulness or superficiality in communication.