Diehard
//ˈdaɪ.hɑɹd// adj, name, noun
adj, name, noun ·Moderate ·College level
Definitions
Noun
- 1 A person with such an attitude. idiomatic
"I should like my Scottish correspondent to see recent statements by leading officers of certain American railways which both have been among the most extreme diehards for steam, and also have developed the most powerful and outstanding steam locomotive designs—[…]."
- 2 one who adheres to traditional views wordnet
Adjective
- 1 Unreasonably or stubbornly resisting change. idiomatic
- 2 Fanatically opposing progress or reform. idiomatic
- 3 Complete; having no opposite opinion of anything in a particular topic of one's values; thorough of in one's beliefs. idiomatic
"For a Roman Catholic teacher, he sure is a diehard fundamentalist."
- 4 Strongly or fanatically determined or devoted. idiomatic
Proper Noun
- 1 A locality in the Glen Innes Severn council area, north eastern New South Wales, Australia.
Example
More examples"He's just a diehard company man."
Etymology
Deverbal from die hard.
Related phrases
More for "diehard"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.