(a.) Detached; dispassionate; impartial\; not influenced by regard to personal interest or advantage; free from selfish motive; having no relation of interest or feeling; not biased or prejudiced; as, a disinterested decision or judge.

Laodicean Olympian abstract aloof altruistic apathetic ataractic benumbed blah blase bored candid careless casual colorless comatose committed consecrated dedicated desensitized detached devil-may-care devoted dispassionate disregardful distant dull easygoing equitable evenhanded fair heartless hebetudinous heedless hopeless humble impartial impassive impersonal in a stupor inattentive incurious indifferent inexcitable insouciant just lackadaisical languid lethargic listless lofty mindless modest negative negligent neutral nonchalant numb numbed objective open-minded passive perfunctory phlegmatic pluckless pococurante poker-faced reckless regardless remote resigned sacrificing self-abasing self-abnegating self-abnegatory self-denying self-devoted self-effacing self-forgetful self-immolating self-neglectful self-neglecting self-renouncing self-sacrificing self-unconscious selfless slack sluggish soporific spiritless spunkless stoic stolid stupefied supine torpid turned-off unacquisitive unanxious unbiased uncaring unconcerned undazzled undiscriminating uninfluenced uninquiring uninterested uninvolved unjaundiced unmindful unpossessive unprejudiced unprepossessed unpretentious unselfish unsolicitous unsparing of self unswayed withdrawn