64 synonyms for conservative such as diehard, careful, conventional, republican, cautious, republican, and tory. Conservative is an adjective, and its antonyms are left-winger, liberal, and socialist.
Careful, cautious, conventional, dyed-in-the-wool, hidebound, middle-of-the-road, moderate, old-fashioned, orthodox, prudent, safe, set in one's ways, stable, stick in the mud, temperate, timid, traditional, traditionalist, unadventurous, unchanging, and unenterprising.
Conventional, demure, low-key, modest, plain, quiet, reserved, restrained, sober, square, straight, subdued, subtle, unobtrusive, and unostentatious.
Republican, Tory, alt-right, establishmentarian, neoconservative, neoliberal, reactionary, right-wing, traditionalist, and true-blue.
Cautious, low, moderate, reasonable, understated, and unexaggerated.
Republican, Tory, diehard, neoconservative, neoliberal, paleo-conservative, reactionary, right-winger, rightist, righty, and true blue.