All die-hard synonyms

adj die-hard

• ultraconservative — extremely conservative, especially in politics.
• unreconstructed — stubbornly maintaining earlier positions, beliefs, etc.; not adjusted to new or current situations: an unreconstructed conservative.
• old-line — following or supporting conservative or traditional ideas, beliefs, customs, etc.
• conservative — A Conservative politician or voter is a member of or votes for the Conservative Party in Britain.
• convinced — If you are convinced that something is true, you feel sure that it is true.
• dyed-in-the-wool — through and through; complete: a dyed-in-the-wool reformer.
• firm — not soft or yielding when pressed; comparatively solid, hard, stiff, or rigid: firm ground; firm texture.
• immovable — incapable of being moved; fixed; stationary.
• inflexible — not flexible; incapable of or resistant to being bent; rigid: an inflexible steel rod.
• intransigent — refusing to agree or compromise; uncompromising; inflexible.
• orthodox — of, relating to, or conforming to the approved form of any doctrine, philosophy, ideology, etc.
• reactionary — of, pertaining to, marked by, or favoring reaction, especially extreme conservatism or rightism in politics; opposing political or social change.
• right — in accordance with what is good, proper, or just: right conduct.
• philistine — (sometimes initial capital letter) a person who is lacking in or hostile or smugly indifferent to cultural values, intellectual pursuits, aesthetic refinement, etc., or is contentedly commonplace in ideas and tastes.
• traditionalistic — adherence to tradition as authority, especially in matters of religion.
• tory — a member of the Conservative Party in Great Britain or Canada.
• fogey — fogy.
• standpat — standpatter.