unconcerned

adj

1. uninterested, indifferent, apathetic, uninvolved, Fr. dégagé, disinterested; distant, aloof, remote, removed, haughty, above it all; impassive, impassible, unemotional, dispassionate, passionless; unexcited, nonchalant, pococurante, perfunctory; lukewarm, Laodicean, cool, cold, chilly, icy, frigid; listless, torpid, languid, phlegmatic, dull, half-dead; inattentive, preoccupied, oblivious, in a world of one's own, out of touch; bored, half-awake, nodding, in a reverie, drifting in and out, with one's head in the clouds.

2. unworried, unanxious, untroubled, insouciant; carefree, blithe, without a care in the world; uncaring, unpitying, unsympathetic, unsolicitous, unmoved, untouched, unstirred, unaffected; thick-skinned, callous, insensible, insensitive, unfeeling, hard, hard-hearted, obdurate; impenetrable, unimpressionable, unreachable, stoical, stolid, stony, with a heart of stone or ice; flinty, steely, sharp, cruel; inconsiderate, thoughtless, casual, unthinking, heedless, impatient; selfish, egoistic, self-centered.