Standard Lemma guide

ultraleftism

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • General-American, Received-Pronunciation: /ˌʌl.tɹəˈlɛf.tɪzəm/

1

noun

Meaning 1

The ideology of the ultraleft, associated with left communism, characterized by a rejection of both social democracy and state socialism in favor of traditional Marxism, including opposition to Leninism and the vanguard party.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Italian left communism; Bordigism.

Definition source: English Wiktionary via Wiktextract

Usage: broadly, specifically, uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Extreme or uncompromising leftist ideology, especially strict adherence to orthodox Marxism.

Definition source: English Wiktionary via Wiktextract

Usage: derogatory, uncountable, usually

Qualifier: far-left

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From ultraleft + -ism. By surface analysis, ultra- + leftism.