W: (adj) subjective [Indirect via objective] (taking place within the mind and modified by individual bias) "a subjective judgment"
S: (adj) inert, indifferent, neutral (having only a limited ability to react chemically; chemically inactive) "inert matter"; "an indifferent chemical in a reaction"
S: (adj) neutral (not supporting or favoring either side in a war, dispute, or contest)
S: (adj) neutral (possessing no distinctive quality or characteristics)