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.
Your countenance belies your insincere request.
An insincere person should not be trusted
The word 'glib' means fluent but insincere.
He made a show of caring and wanting to help, but we knew he was insincere.
Please tell me how to properly utilize the word "bunkum" in a sentence. When I lost my job, my brother's offer to let me stay with him turned out to be nothing but bunkum. "Bunkum" means "insincere talk". "Bunkum" is a variation of the word "Buncombe".
Hypocritical.
Some synonyms of the word "insincere" are ambidextrous, backhanded, and deceitful. Other synonyms include deceptive, devious, disingenuous, and dissembling.
insincere
deceitful, deceptive, insincere
Hypocritical or lacking honesty.
Insincere or ironic, mean
insincere, liar, untrustworthy come to mind.