25B6; adjective INVETERATE, confirmed, entrenched, established, long-standing, deep-rooted, diehard; complete, absolute, thorough, thoroughgoing, out-and-out, true blue; firm, unshakeable, staunch, steadfast, committed, devoted, dedicated, loyal, unswerving; N. Amer. full-bore; informal deep-dyed, card-carrying.
DYED-IN-THE-WOOL
Meaning of DYED-IN-THE-WOOL in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012