(as) obstinate as a mule

(as) obstinate as a mule

Extremely reluctant or unwilling to change a particular opinion, behavior, or course of action, especially when faced with opposition. My toddler is as obstinate as a mule, and he'll throw a tantrum any time he doesn't get what he wants. You'll never get Rich to change his opinion—he's obstinate as a mule.
See also: mule, obstinate
Farlex Dictionary of Idioms.
See also:
  • (as) stubborn as a mule
  • mule
  • obstinate
  • stubborn
  • stubborn as a mule
  • be (as) stubborn as a mule
  • cooperate on (something) with (someone or something)
  • cooperate with (someone or something) on (something)
  • cooperate with
  • cooperate with (someone or something)