insincerely
Definitions
In a manner that is not expressing genuine feelings.
In a way that lacks honesty or sincerity; hypocritically.
Examples
He apologized insincerely, his eyes darting around the room instead of meeting mine.
She smiled insincerely at the guests, clearly wishing she were anywhere else.
Synonyms
hypocritically falsely deceitfully dishonestly duplicitously feignedly artificially
Antonyms
sincerely genuinely honestly truthfully candidly heartily frankly