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