He listened to the news with an expressionless face.

In a state of weightlessness, objects float freely.

Astronauts experience weightlessness.

He was left in a state of statelessness, belonging to no country.

He delivered the news with a shameless smile.

I think his behavior is completely shameless.

This coffee is sugar-free.

This painting is drawn in achromatic color, and its beauty stands out.

There are only inanimate objects in this room.

I learned about anhydrides in chemistry class.