1. (a.) Liable to respond; likely to be called upon to answer; accountable; answerable; amenable; as, a guardian is responsible to the court for his conduct in the office.

2. (a.) Able to respond or answer for one's conduct and obligations; trustworthy, financially or otherwise; as, to have a responsible man for surety.

3. (a.) Involving responsibility; involving a degree of accountability on the part of the person concerned; as, a responsible office.