neutral

Synonyms: aloof bystanding calm clinical collected cool detached disengaged disinterested dispassionate easy evenhanded fair-minded impersonal inactive indifferent inert middle-of-road nonaligned nonbelligerent nonchalant noncombatant nonparticipating nonpartisan on sidelines on the fence pacifistic pokerfaced relaxed unaligned unbiased uncommitted unconcerned undecided uninvolved unprejudiced

Antonyms: biased committal partial predisposed prejudiced

Synonyms: abstract achromatic colorless drab expressionless indeterminate indistinct indistinguishable intermediate toneless undefined vague vanilla

Antonyms: bright loud strong