Source : Webster's Revised Unabridged Dictionary (1913)

Answerable \An"swer*a*ble\, a.
   1. Obliged to answer; liable to be called to account; liable
      to pay, indemnify, or make good; accountable; amenable;
      responsible; as, an agent is answerable to his principal;
      to be answerable for a debt, or for damages.

            Will any man argue that . . . he can not be justly
            punished, but is answerable only to God? --Swift.

   2. Capable of being answered or refuted; admitting a
      satisfactory answer.

            The argument, though subtle, is yet answerable.
                                                  --Johnson.

   3. Correspondent; conformable; hence, comparable.

            What wit and policy of man is answerable to their
            discreet and orderly course?          --Holland.

            This revelation . . . was answerable to that of the
            apostle to the Thessalonians.         --Milton.

   4. Proportionate; commensurate; suitable; as, an achievement
      answerable to the preparation for it.

   5. Equal; equivalent; adequate. [Archaic]

            Had the valor of his soldiers been answerable, he
            had reached that year, as was thought, the utmost
            bounds of Britain.                    --Milton.

Source : WordNet®

answerable
     adj 1: possible to answer
     2: morally or legally  responsible to a higher authority;
        "parents are answerable for their child's acts"