Conventional

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

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.