What is another word for carefree?

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

General synonyms:

* Relaxed

* Easygoing

* Unburdened

* Lighthearted

* Happy-go-lucky

* Insouciant (more formal)

* Blithe (more poetic)

More specific synonyms:

* Unworried (emphasizes lack of concern)

* Spontaneous (emphasizes impulsiveness)

* Free-spirited (emphasizes a sense of adventure)

* Unconstrained (emphasizes freedom from restrictions)

The best synonym to use will depend on the context of your sentence.