done, performed, delivered, etc., at once or without delay

a prompt reply.

ready in action; quick to act as occasion demands.

quick or alert

prompt to take offense.

punctual.

to move or induce to action

What prompted you to say that?

to occasion or incite; inspire

What prompted his resignation?

to assist (a person speaking) by suggesting something to be said.

Theater . to supply (an actor, singer, etc.) from offstage with a missed cue or forgotten line.

Theater . to supply forgotten lines, lyrics, or the like to an actor, singer, etc.

Commerce .

a limit of time given for payment for merchandise purchased, the limit being stated on a note of reminder (prompt note).

the contract setting the time limit.

the act of prompting.

something serving to suggest or remind.

Computers . a message or symbol from a computer system to a user, generally appearing on a display screen, requesting more information or indicating that the system is ready for user instructions. ?

take a prompt

(in acting) to move or speak in response to a cue.

noun

alacrity , dispatch