set one's face against

set (one's) face against (something)

To be strongly opposed to or disapproving of something. My parents set their faces against me marrying her, so we eloped. The CEO has promised to set his face against any pay cuts or job losses following the disastrous third-quarter performance.
See also: face, set
Farlex Dictionary of Idioms.

set one's face against

Strongly disapprove, as in Her parents set their faces against her eloping. The term set one's face has been used in the sense of "assume a fixed facial expression" since the mid-1500s.
See also: face, set
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • set (one's) face against (something)
  • set your face against
  • set your face against something
  • get (all) set
  • get set
  • be (all) set (to do something)
  • set your hand to
  • set (one's) hand to
  • set about (doing something)
  • set about doing