orthodox

1 following or agreeing with established form, custom, or rules schoolteachers tended to favor poets who followed a very orthodox style of poetry Synonyms ceremonial, ceremonious, conventional, formal, regular, routineRelated Words authorized, certified, official, sanctioned; accepted, correct, decorous, genteel, nice, polite, proper, respectable, seemly; formalistic, ritual, ritualistic; methodical (also methodic), orderly, systematicNear Antonyms unauthorized, unofficial; graceless, improper, inappropriate, incorrect, indecorous, inept, infelicitous, unapt, unbecoming, unfit, unhappy, unseemly, unsuitableAntonyms casual, freewheeling, informal, irregular, unceremonious, unconventional, unorthodox

2 tending to favor established ideas, conditions, or institutions orthodox in their view of the world, the Founding Fathers subscribed to the 18th-century notion that only men with property should be allowed to vote Synonyms archconservative, brassbound, button-down (or buttoned-down), die-hard, hidebound, mossbacked, old-fashioned, old-line, old-school, conservative, paleoconservative, reactionary, standpat, traditional, traditionalistic, ultraconservative, unprogressiveRelated Words conventional, square; devoted, faithful, loyal, staunch (also stanch), steadfast, steady, true, true-blue; blimpish, neoconservative, Tory, ultraright, ultrarightist; dowdy, fogyish (or fogeyish), fuddy-duddy, ossified, set, stodgy; right, right-wing; antiliberal, antimodern, antiprogressive, antireform, antirevolutionaryNear Antonyms anticonventional, antiestablishment, antitraditional, extremist, radical, revolutionary; nonconformist; advanced, contemporary, modern; lefty, radical, ultraleft, ultraleftist, ultraprogressive, ultraradicalAntonyms broad-minded, large-minded, liberal, nonconservative, nonconventional, nonorthodox, nontraditional, open-minded, progressive, unconventional, unorthodox