What is a synonym for amused?

Here are some synonyms for "amused", depending on the specific nuance you'd like to convey:

General:

* entertained

* delighted

* pleased

* diverted

* tickled

More lighthearted:

* tickled pink

* in stitches

* giggling

* smiling

* grinning

Slightly less positive:

* tolerant

* forbearing

* indulgent

More formal:

* diverted

* engrossed

* captivated

The best synonym will depend on the specific context of your writing.