be dead set on (something)

be dead set on (something)

To be intent on doing or obtaining something. I am dead set on going out today, so a little rain isn't going to stop me. She's dead set on this house, so she'll be heartbroken to hear that her offer's been rejected.
See also: dead, on, set
Farlex Dictionary of Idioms.

be dead set on something

If you are dead set on doing something or having something, you are determined to do it or get it. I'm dead set on getting dancing lessons now. To my surprise, he was dead set on a new career as a solicitor.
See also: dead, on, set, something
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • better
  • quick and the dead
  • quick and the dead, the
  • the quick and the dead
  • dead asleep
  • wait for dead men's shoes
  • play possum
  • play possum, to
  • possum
  • dead men tell no tales