Not representative or symbolic; not iconic.
Determined by independent arbiter.
Determined by impulse rather than reason; heavy-handed.
Based on individual discretion or judgment; not based on any objective distinction, perhaps even made at random.
Any, out of all that are possible.
Anything arbitrary, such as an arithmetical value or a fee.
Accepted, familiar, researched.
Identified as a specific type; famous, renowned.
Any fact or situation which is known or familiar.
A constant or variable the value of which is already determined.