diehard.
Unreasonably or stubbornly resisting change.
Meaning & usage
Unreasonably or stubbornly resisting change.
Fanatically opposing progress or reform.
Complete; having no opposite opinion of anything in a particular topic of one's values; thorough of in one's beliefs.
For a Roman Catholic teacher, he sure is a diehard fundamentalist.
Strongly or fanatically determined or devoted.
Where this word comes from
Deverbal from die hard.
A person with such an attitude.
Where this word comes from
Deverbal from die hard.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.