Noun

• S: (n) conservative, conservativist (a person who is reluctant to accept changes and new ideas)
• direct hyponym / full hyponym
• S: (n) capitalist (a conservative advocate of capitalism)
• S: (n) conformist (someone who conforms to established standards of conduct (especially in religious matters))
• S: (n) fuddy-duddy (a conservative who is old-fashioned or dull in attitude or appearance) "you may accuse me of being and old fuddy-duddy trying to stop young people having fun"
• S: (n) hardliner (a conservative who is uncompromising)
• S: (n) minimalist (a conservative who advocates only minor reforms in government or politics)
• S: (n) mossback (an extremely old-fashioned conservative)
• S: (n) neoconservative, neocon (a conservative who subscribes to neoconservatism)
• S: (n) reactionary, ultraconservative, extreme right-winger (an extreme conservative; an opponent of progress or liberalism)
• S: (n) Bourbon (a reactionary politician in the United States (usually from the South))
• S: (n) Colonel Blimp, Blimp (any elderly pompous reactionary ultranationalistic person (after the cartoon character created by Sir David Low))
• S: (n) rightist, right-winger (a member of a right wing political party)
• S: (n) monarchist, royalist (an advocate of the principles of monarchy)
• S: (n) Cavalier, Royalist (a royalist supporter of Charles I during the English Civil War)
• S: (n) Orleanist (a supporter of the Orleans branch of the Bourbons that was descended from a younger brother of Louis XIV)
• S: (n) Tory (a supporter of traditional political and social institutions against the forces of reform; a political conservative)
• S: (n) square, square toes (a formal and conservative person with old-fashioned views)
• S: (n) traditionalist, diehard (one who adheres to traditional views)
• S: (n) Rip van Winkle (a person oblivious to social changes)
• direct hypernym / inherited hypernym / sister term
• antonym
• derivationally related form
• S: (n) Conservative (a member of a Conservative Party)

Adjective

• S: (adj) conservative (resistant to change, particularly in relation to politics or religion)
• S: (adj) conservative (having social or political views favoring conservatism)
• S: (adj) cautious, conservative (avoiding excess) "a conservative estimate"
• S: (adj) button-down, buttoned-down, conservative (unimaginatively conventional) "a colorful character in the buttoned-down, dull-grey world of business"- Newsweek
• S: (adj) bourgeois, conservative, materialistic (conforming to the standards and conventions of the middle class) "a bourgeois mentality"