What is a synonym for posterity?

Here are some synonyms for "posterity," depending on the specific nuance you want to convey:

General synonyms:

* Future generations

* Descendants

* Offspring

* Successors

* Heirs

* Progeny

More specific synonyms:

* Future (if referring to time)

* The ages to come (if referring to a historical context)

* The world to come (if referring to a spiritual or religious context)

The best synonym will depend on the context of your writing. For example, if you're talking about the legacy of a famous artist, "descendants" might be a suitable synonym. But if you're talking about the long-term effects of climate change, "future generations" might be more appropriate.