n. 25B6; adjective HARD-LINE, reactionary, ultra-conservative, conservative, traditionalist, dyed-in-the-wool, deep-dyed, intransigent, inflexible, uncompromising, rigid, entrenched, set in one's ways; staunch, steadfast; informal blimpish.
DIEHARD
Meaning of DIEHARD in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012