light · gentle · relaxed · effortless · uncomplicated · to relax · to take things less seriously

Relax, it's just a scarecrow.

All in all, I think my hobbies are balanced; they bring some relaxation to my life, and at the same time bring focus to my studies.

Our task has been easy so far, but it will be difficult from now on.

After saying everything that I had to, I felt relaxed.

He can read English easily.