Conventional

1. Formed by agreement or compact; stipulated.
2. Growing out of, or depending on, custom or tacit agreement; sanctioned by general concurrence or usage; formal.
1. Based upon tradition, whether religious and historical or of artistic rules.
2. 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.