What does CONVENTIONAL mean?

adjective

1. following accepted customs and proprieties“conventional wisdom”
2. conforming with accepted standards“a conventional view of the world”
3. (weapons) using energy for propulsion or destruction that is not nuclear energy“conventional warfare”
4. unimaginative and conformist“conventional bourgeois lives”
5. represented in simplified or symbolic form
6. in accord with or being a tradition or practice accepted from the past“a conventional church wedding with the bride in traditional white”
7. rigidly formal or bound by convention“their ceremonious greetings did not seem heartfelt”