English Reference
adverb

promptly

adv.
US /ˈpɹɑmpɫi/ UK /pɹˈɒmptli/ prompt·ly

  1. 01 B2 Upper Intermediate

    doing something immediately or very quickly after being asked or after something happens.

    performed immediately or without hesitation following a request, event, or instruction.

    Simple

    When the alarm went off, the staff promptly evacuated the building.

    In context

    The customer service team responded promptly to the complaint, resolving the technical issue within an hour of the initial report.

    Usage

    typically follows the verb it modifies or appears at the end of the clause.

  2. 02 B2 Upper Intermediate

    at exactly the right time, not late.

    at the exact time specified; punctually.

    Simple

    The meeting will begin promptly at nine o'clock tomorrow morning.

    In context

    The train departed promptly at noon, leaving several late passengers stranded on the platform.

    Usage

    often used with specific clock times.

    Teacher's tip

    In formal contexts, 'promptly' is preferred over 'sharp' or 'on the dot'.

    punctuallyon timesharp
    latetardily

They got back to me, promptly and professionally.

Toronto Sun· 29 Aug 2026

From prompt + -ly.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated