concerned Antonyms

unconcerned placid slothful slumbery somnolent steady stung stultified supine theme tired uninterested unmoved unready unshakable slack shiftless serene plodding pluckless poised posed pricked quiescent regardless relaxed remiss reposeful sedate self-assured self-contained self-possessed WORE wry unharmed even-tempered uninvolved untroubled unflappable self-controlled uncaring slow-moving unstressed unconvinced unemotional unopened unperturbed unveiled worry-free at ease