Synonym of proper

good correct appropriate suitable right apt apposite accurate fitting convenient decent legitimate useful able applicable au fait becoming befitting capable competent desired felicitous fit happy just meet qualified suited true conventional exact formal precise usual absolute accepted arrant complete consummate customary decorous established free of error on target on the button on the nose on the right track orthodox out-and-out unmistaken utter

polite modest prim genteel respectable courteous mannerly moral by the book by the numbers comely comme il faut conforming de rigueur demure in line kosher nice priggish prissy prudish punctilious puritanical refined seemly solid square stone straight strait-laced stuffy

own personal characteristic identifiable individual special specific distinctive idiosyncratic particular peculiar private respective

as it should be by the book according to regulation according to Hoyle according to rule

be fitting be one's obligation is fitting owing to be needful be required be right beseem be incumbent upon behove be expected be requisite behoove beseeming owe it to