conforming or adhering to accepted standards, as of conduct or taste

conventional behavior.

pertaining to convention or general agreement; established by general consent or accepted usage; arbitrarily determined

conventional symbols.

ordinary rather than different or original

conventional phraseology.

not using, making, or involving nuclear weapons or energy; nonnuclear

conventional warfare.

Art .

in accordance with an accepted manner, model, or tradition.

(of figurative art) represented in a generalized or simplified manner.

of or pertaining to a convention, agreement, or compact.

Law . resting on consent, express or implied.

of or pertaining to a convention or assembly.

adjective

abnormal , exotic , foreign , irregular , strange , uncommon , unconventional , uncustomary , unusual , different , new , original , unique

adjective

accepted , accustomed , button-down , commonplace , correct , current , customary , decorous , everyday , expected , fashionable , formal , general , habitual , in established usage , ordinary , orthodox , plain , popular , predominant , prevailing , prevalent , proper , regular , ritual , routine , square , standard , stereotyped , straight , traditional , tralatitious , typical , usual , well-known , wonted , bigoted , bourgeois , conforming , conservative , demure , doctrinal , dogmatic , drippy , hackneyed , hidebound , humdrum , illiberal , inflexible , in rut , insular , isolationist , lame , literal , moderate , moral , narrow , narrow-minded , not heretical , obstinate , parochial , pedestrian , prosaic , puritanical , rigid , rube * , run-of-the-mill , sober , solemn , straight-laced , strict , stuffy , uptight , received , recognized , sanctioned , conformist , establishmentarian , courtly , punctilious , academic , artificial , au fait , ceremonial , ceremonious , common , contractual , conventionalized , decent , developed , established , normal , orthodoxical , pedantic , philistine , stilted , stylized , trite