Synonyms in Detail: forthwith and promptly Usage & Differences

What context can I use each word in?

Learn when and how to use these words with these examples!

forthwith

Example

The company demands payment forthwith. [forthwith: adverb]

Example

The fire department arrived forthwith to put out the flames. [forthwith: adverb]

promptly

Example

Please submit your report promptly. [promptly: adverb]

Example

The train departed promptly at 9 am. [promptly: adverb]

Good things to know

Which word is more common?

Promptly is more commonly used than forthwith in everyday language.

What’s the difference in the tone of formality between forthwith and promptly?

Forthwith is more formal than promptly and is often used in legal or official documents.