Conventional1. (a.) Formed by agreement or compact; stipulated.
2. (a.) Growing out of, or depending on, custom or tacit agreement; sanctioned by general concurrence or usage; formal.
3. (a.) Based upon tradition, whether religious and historical or of artistic rules.
4. (a.) Abstracted; removed from close representation of nature by the deliberate selection of what is to be represented and what is to be rejected; as, a conventional flower; a conventional shell. Cf. Conventionalize, v. t.
Thesaurus Entries
Christian, accepted, accordant, accustomed, acknowledged, admitted, agreed, anal, approved, authentic, authoritative, average, being done, bourgeois, button-down, canonical, ceremonial, ceremonious, comme il faut, common, commonplace, compulsive, concordant, conformable, conformist, conscientious, conservative, constrained, consuetudinary, contractual, correct, corresponding, covenantal, current, customary, de rigueur, decent, decorous, established, evangelical, everyday, faithful, familiar, fastidious, firm, fixed, folk, formal, formalistic, garden, garden-variety, generally accepted, habitual, hallowed, handed down, harmonious, heroic, hieratic, hoary, household, immemorial, in accord, in keeping, in line, in step, inveterate, kosher, legendary, literal, liturgic, long-established, long-standing, meet, middle-class, moderate, mythological, naive, natural, nice, no great shakes, normal, normative, obtaining, of long standing, of the faith, of the folk, old hat, old-fashioned, oral, ordinary, orthodox, orthodoxical, pedantic, plastic, pompous, popular, precise, precisianistic, predominating, prescribed, prescriptive, prevailing, prevalent, proper, punctilious, reactionary, received, recognized, regular, regulation, reliable, responsible, right, ritual, ritualistic, rooted, run-of-mine, run-of-the-mill, sacerdotal, scriptural, scrupulous, seemly, set, simple, sober, solemn, sound, square, standard, stately, stock, stodgy, straight, stuffy, suburban, temperate, textual, time-honored, traditional, traditionalist, traditionalistic, tried and true, TRUE, true-blue, understood, unexceptional, universal, unnoteworthy, unremarkable, unsophisticated, unspectacular, unwritten, uptight, usual, venerable, vernacular, well-mannered, widespread, wonted, worshipful