responsible

1 being the one who must meet an obligation or suffer the consequences for failing to do so the state laws hold pet owners responsible for any damage or injury done by improperly restrained animals Synonyms accountable, amenable, answerable, liable Related Words beholden, indebted, obligated, obliged Near Antonyms exempt, immune Antonyms irresponsible, nonaccountable, unaccountable

2 worthy of one's trust our regular babysitter is very responsible Synonyms calculable, good, reliable, dependable, safe, secure, solid, steady, sure, tried, tried-and-true, true, trustable, trustworthy, trustyRelated Words constant, devoted, faithful, fast, loyal, staunch (also stanch), steadfast, true-blue; honest, sincere, single-minded; infallible, unerring; bedrock, firm, sound, strong; effective, telling; attested, authenticated, confirmed, proven, valid, validated, verified; blameless, faultless, guiltless, impeccable, inerrant, irreproachable, unimpeachable, unquestionableNear Antonyms disloyal, faithless, false, fickle, inconstant, perfidious, recreant, traitorous, treacherous, unfaithful, untrue; deceitful, dishonest, lying, mendacious, untruthful; debatable, disputable, doubtable, doubtful, dubious, fishy, problematic (also problematical), questionable, shady, shaky, suspect, uncertain, unsound; hazardous, risky; unconfirmed, untriedAntonyms dodgy [chiefly British], uncertain, undependable, unreliable, unsafe, untrustworthy