commitment

1 adherence to something to which one is bound by a pledge or duty his frequent absences made others question his commitment to the political campaign Synonyms adhesion, allegiance, attachment, fidelity, constancy, dedication, devotedness, devotion, faith, faithfulness, fastness, fealty, loyalty, piety, steadfastness, trothRelated Words affection, fondness; determination, firmness, resolution; dependability, reliability, trustability, trustiness, trustworthinessNear Antonyms alienation, disaffection, estrangement, separationAntonyms disloyalty, faithlessness, falseness, falsity, inconstancy, infidelity, perfidiousness, perfidy, treachery, unfaithfulness

2 something one must do because of prior agreement they made a commitment to pay the bill upon receipt of their order Synonyms burden, charge, obligation, devoir, do [archaic], duty, imperative, incumbency, need, office, responsibilityRelated Words oath, pledge, promise, troth, vow, word; arrangement, prearrangement, setup; compact, contract, covenant, pact, trust; debt, payment, tribute; compulsion, constraint, restraint; must, requirement; coercion, duress, force; appointment, engagement, reservation; burden, onusNear Antonyms grace, postponement, stay; discharge, ease, exemption, release, relief, waiver; loophole; alternative, choice, option, pick, preference, selection