contrist

As an adjective centrist

is of, pertaining to, or advocating centrism.

As a noun centrist

is a person who advocates centrism.

As a verb contrist is

(obsolete) to make sad, to upset.

As verbs the difference between contrist and contrast

is that contrist is (obsolete) to make sad, to upset while contrast is to set in opposition in order to show the difference or differences between.

As a noun contrast is

(label) a difference in lightness, brightness and/or hue between two colours that makes them more or less distinguishable.