answering, replying or responding / able to receive and respond to external stimuli / using antiphons; antiphonal / susceptible to the feelings of others

In a responsive manner.

The quality or state of being responsive. / The ability of a machine to adjust to external influences.

plural of responsiveness

(postpositive, 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.

(archaic) The individual who bears the responsibility for something. / (theater) An actor taking on the lesser roles in repertory theatre.

An answer or reply, or something in the nature of an answer or reply. / The act of responding or replying; reply: as, to speak in response to a question. / An oracular answer.

The state of being responsible, accountable, or answerable. [from 18th c.] / The state of being liable, culpable, or responsible for something in particular.

plural of responsibility

The state of being responsible; responsibility.