Definition of die-hard
- die-hard fans
- a die-hard conservative
archconservative, brassbound, button-down (or buttoned-down), conservative, hidebound, old-fashioned, old-line, old-school, orthodox, reactionary, standpat, traditional, traditionalistic, ultraconservative, unprogressive;
: very determined or loyal; especially : very loyal to a set of beliefs and not willing to change those beliefs
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