on the tab (adjective) beholden: indebted
Sinonime: aloofness, coldness, coolness, detachment, disinterest, dispassion, disregard, dullness, emotionlessness, halfheartedness, heedlessness, impassivity, incuriousness, indifference, insensibility, insensibleness, insensitivity, insouciance, lassitude, lethargy, listlessness, passiveness, passivity, phlegm, stoicism, stolidity, stolidness, unconcern, uninterest, unresponsiveness
Antonime: ingrateful