Standard Lemma guide

irrationalism

noun · 1 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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1

noun

Meaning 1

A philosophical movement formed as a cultural reaction against positivism in the early 20th century.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree English irrational Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ισμός (-ismós)der. English -ism English irrationalism From irrational + -ism.

Across languages

Translations

8 source translations are retained for this English entry.

  • Catalan: irracionalisme — philosophical movement
  • German: Irrationalismus — philosophical movement
  • Greek: ιρασιοναλισμός (irasionalismós) — philosophical movement
  • Polish: irracjonalizm — philosophical movement
  • Russian: иррационали́зм (irracionalízm) — philosophical movement
  • Serbo-Croatian: iracionalizam — philosophical movement
  • Slovene: iracionalizem — philosophical movement
  • Spanish: irracionalismo — philosophical movement