ultra-left; far-left extremists
Refers to the extreme left wing of a political spectrum, often used for groups or individuals with radical leftist views. Can be used as a noun or as a no-adjective.
He is known as an ultra-left activist.
The far-left faction of the party repeatedly made hardline statements.
A Sino-Japanese compound of 最, “most,” and 左翼, “left wing”; the supplied reading さいさよく contains no voicing of さ.