Alt-left

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A political movement whose supporters hold extreme left-wing views and reject mainstream politics. It's a purported political faction espousing an extreme leftist ideology, or one espousing liberal ideology but using extreme, antiestablishment messaging. derogatory, uncountable

    "Turner approvingly noted that when The Canary – the doyen of the alt-left media outlets – first launched in late 2015 it was dubbed “the left-wing Daily Mail” by virtue of being written in a way that is accessible to everyone."

  2. 2
    The part of the political spectrum that is considered too left-wing; the extreme or radical left. US, derogatory, uncountable

    "The alt-left trolls are not over it - now they decided to bus in protestors to protest against a democratic result. The alt-left media have been slow to bash these undemocratic revolting bussed in peasants."

Example

More examples

"Turner approvingly noted that when The Canary – the doyen of the alt-left media outlets – first launched in late 2015 it was dubbed “the left-wing Daily Mail” by virtue of being written in a way that is accessible to everyone."

Etymology

From alt- + left, by analogy with alt-right.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.