A movement in the arts in which the artist did not depict objective reality, but rather a subjective expression of their inner experiences / A somewhat analogous genre in early 20th century music

Expressionist.

Of, pertaining to, or in the style of expressionism

A painter who paints in this style

plural of expressionist

Of or pertaining to expression, either in language, genetics, the face or the arts

An American genre of modern art that used improvised techniques, such as sinuous linearity, to generate highly abstract forms while allowing the artist spontaneity.

The state of being without an expression.

Without expression; in an expressionless way.

In an expressionistic manner.