|Origin:||promptus, from the past participle of promere 'to bring out'|
done quickly, immediately, or at the right time:
Prompt action must be taken.
Prompt payment is requested.
a prompt response
2 [not before noun]
someone who is prompt arrives or does something at the right time and is not late:
Lunch is at two. Try to be prompt.
—promptness noun [uncountable]