adjective
impartial, noncommittal
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, poker-faced, relaxed, unaligned, unbiased, uncommitted, unconcerned, undecided, uninvolved, unprejudiced
Antonyms: biased, committal, partial, predisposed, prejudiced
adjective
flat, dull to senses
Synonyms: abstract, achromatic, colorless, drab, expressionless, indeterminate, indistinct, indistinguishable, intermediate, toneless, undefined, vague, vanilla
Antonyms: bright, loud, strong