lose face
to lose people's respect for you, especially by doing something that makes you look weak or stupid in front of other people

[TahlilGaran] Dictionary of Contemporary English ▲

ashamed [not before noun] feeling very sorry and embarrassed because of something you have done, or someone connected with you has done:
You should be ashamed of yourself.
She felt deeply ashamed of her son’s behaviour.
humiliated [not before noun] very ashamed and upset, because someone has made you look weak or stupid, especially in front of other people:
I came out of the class feeling humiliated.
mortified /ˈmɔːtəfaɪd, ˈmɔːtɪfaɪd $ ˈmɔːr-/ extremely ashamed and embarrassed, especially about something you have done accidentally:
She’ll be mortified when she realizes her mistake.
a mortified expression
shamefaced showing by the expression on your face that you are ashamed about something:
Paul came into my office looking shamefaced and apologized for what he had done.
feel guilty (also feel bad especially spoken) to feel worried and unhappy because you know that you have done something wrong. Feel bad is more informal than feel guilty:
He felt guilty about lying to his parents.
I felt bad about letting the team down.
lose face to lose people’s respect for you, especially by doing something that makes you look weak or stupid in front of other people:
He feels he’ll lose face if he admits to his staff that he was wrong.

[TahlilGaran] English Thesaurus ▲

lose face
to do something which makes other people stop respecting you.
He refused to admit he made a mistake because he didn't want to lose face.

[TahlilGaran] English Idioms Dictionary ▲

lose face
to be embarrassed or ashamed by an error or failure, to lose dignity; to lose self-respect
Our boss lost face when his employees decided not to support him during the meeting.

The manager lost face when the person who she hired was a terrible worker.

[TahlilGaran] English Idioms Dictionary ▲

lose face
v. To be embarrassed or shamed by an error or failure; lose dignity, influence or reputation; lose self-respect or the confidence of others.
Many Japanese soldiers were killed in World War II because they believed that to give up or retreat would make them lose face.
John's careless work made him lose face with his employer.
The banker lost face when people found out he bet on horse races.

[TahlilGaran] English Idioms Dictionary ▲