noun
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.
彼は最左翼の活動家として知られている。
He is known as an ultra-left activist.
その政党の最左翼派は強硬な主張を繰り返した。
The far-left faction of the party repeatedly made hardline statements.
極左 is a more common term for 'far-left' or 'extreme left', often used in news and political analysis. 最左翼 is less frequent and may carry a slightly more formal or written nuance.
Compound of 最 (sai, 'most') + 左翼 (sayoku, 'left wing'). The reading さいさよく reflects rendaku voicing of さよく to ざよく in the compound, though the kanji reading is conventionally さいさよく.