diehardnoun [ C ]
uk/ˈdaɪ.hɑːd/us/ˈdaɪ.hɑːrd/disapprovingsomeone who is unwilling to change or give up their ideas or ways of behaving, even when there are good reasons to do so:
a diehard conservative/fan
Thesaurus: synonyms and related words
Stubborn and determined people
- careerist
- fighter
- go-getter
- holdout