What is synonym of astir?

Here are some synonyms for "astir", depending on the context:

General:

* Active

* Busy

* Stirring

* Alive

* Animated

* Afoot

* In motion

* Up and about

* Awake

* Moving

More specific:

* If referring to people: Excited, bustling, lively, vibrant, energetic

* If referring to a place: Lively, bustling, vibrant, humming, teeming

Example:

* Original sentence: The city was astir with activity.

* Synonyms: The city was alive with activity. / The city was teeming with activity.

Choose the synonym that best fits the specific context and nuance of your sentence.