responsible

adjective more responsible · most responsible

1. postpositional, followed by "for" Having the duty of taking care of something; answerable for an act performed or for its consequences; accountable; amenable, especially legally or politically. Parents are responsible for their child's behaviour.
2. postpositional, followed by "for" Being a primary cause of a situation or action and thus able to be blamed or credited for it. Who is responsible for this mess?
3. followed by "to" Answerable to (a superior).
4. of a job or position Involving important duties; involving a degree of personal accountability on the part of the person concerned. She has a responsible position in the firm.
5. Having good judgment in decision-making. But was it responsible governance to pass the Longitude Act without other efforts to protect British seamen? Or might it have been subterfuge—a disingenuous attempt to shift attention away from the realities of their life at sea.
6. Able to be trusted; reliable; trustworthy. He looks like a responsible guy.
7. Capable of rational conduct and thus morally accountable for one's behavior.

Opposite: irresponsible

noun responsibles

1. archaic The person who bears the responsibility for something. Were this not so, long since would we have traced directly home the responsibility for the war on Freedom in the Philippines. Long since, would we have hanged the responsibles as traitors to our country.
2. An actor taking on the lesser roles in repertory theatre. […] first appeared on August Bank Holiday, 1901, at Grand Theatre, Llandudno, playing "responsibles" with Edward Compton; […]