D defs.my
Entry 3 senses · 2 variants Webster, 1913

diehard

/(dī"härd`)/ · die·hard · IPA /ˈdaɪ.hɑɹd/
01 n. one who stubbornly adheres to traditional and outdated views.
  1. 1.
    one who stubbornly adheres to traditional and outdated views.
  2. 2.
    one who vigorously defends an apparently hopeless position, a lost cause, etc.
02 a. stubbornly and vigorously resisting in the face of seemingly hopeless odds; as, diehard opposition.
  1. 1.
    stubbornly and vigorously resisting in the face of seemingly hopeless odds; as, diehard opposition.
Syn. never-say-die.