Standard Lemma guide

illogical

adj · 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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  • CMU ARPABET: IH2 L AA1 JH IH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Contrary to logic; lacking sense or sound reasoning.

Definition source: English Wiktionary via Wiktextract

Examples

  • I received an illogical reply and that left me standing there feeling confused.

Meaning relationships

Synonyms: absurd, irrational, unreasoning, unsound

Antonyms: logical

2

adjective

Meaning 2

lacking in correct logical relation

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: unlogical

Antonyms: logical

3

adjective satellite

Meaning 3

lacking orderly continuity

Definition source: Princeton WordNet 3.0

Examples

  • a confused set of instructions
  • a confused dream about the end of the world
  • disconnected fragments of a story
  • scattered thoughts

Meaning relationships

Synonyms: confused, disconnected, disjointed, disordered, garbled, scattered, unconnected

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English il- English logical English illogical From il- + logical.

Across languages

Translations

41 source translations are retained for this English entry.

  • Armenian: անտրամաբանական (antramabanakan) — contrary to logic; lacking sense or sound reasoning
  • Azerbaijani: məntiqsiz — contrary to logic; lacking sense or sound reasoning
  • Catalan: il·lògic — contrary to logic; lacking sense or sound reasoning
  • Chinese Mandarin: 不合邏輯 /不合逻辑 (bùhé luójí) — contrary to logic; lacking sense or sound reasoning
  • Chinese Mandarin: 悖理 (bèilǐ) — contrary to logic; lacking sense or sound reasoning
  • Chinese Mandarin: 荒謬 /荒谬 (huāngmiù) — contrary to logic; lacking sense or sound reasoning
  • Chinese Mandarin: 乖戾 (guāilì) — contrary to logic; lacking sense or sound reasoning
  • Czech: nelogický — contrary to logic; lacking sense or sound reasoning
  • Dutch: onlogisch — contrary to logic; lacking sense or sound reasoning
  • Esperanto: nelogika — contrary to logic; lacking sense or sound reasoning
  • Finnish: epälooginen — contrary to logic; lacking sense or sound reasoning
  • French: illogique — contrary to logic; lacking sense or sound reasoning
  • Galician: ilóxico — contrary to logic; lacking sense or sound reasoning
  • German: unlogisch — contrary to logic; lacking sense or sound reasoning
  • Greek: άλογος (álogos) — contrary to logic; lacking sense or sound reasoning
  • Ancient Greek: ἄλογος (álogos) — contrary to logic; lacking sense or sound reasoning
  • Hebrew: חסר היגיון (khasár higayón) — contrary to logic; lacking sense or sound reasoning
  • Hungarian: észszerűtlen — contrary to logic; lacking sense or sound reasoning
  • Hungarian: logikátlan — contrary to logic; lacking sense or sound reasoning
  • Italian: illogico — contrary to logic; lacking sense or sound reasoning
  • Japanese: 支離滅裂な (shirimetsuretsu na) — contrary to logic; lacking sense or sound reasoning
  • Japanese: 非論理的な (hi ronriteki na) — contrary to logic; lacking sense or sound reasoning
  • Kazakh: логикасыз (logikasyz) — contrary to logic; lacking sense or sound reasoning
  • Korean: 동우각마 (dong'ugangma) — contrary to logic; lacking sense or sound reasoning
  • Lithuanian: nelogiškas — contrary to logic; lacking sense or sound reasoning
  • Manx: meeresoonagh — contrary to logic; lacking sense or sound reasoning
  • Manx: neuresoonagh — contrary to logic; lacking sense or sound reasoning
  • Norwegian Bokmål: ulogisk — contrary to logic; lacking sense or sound reasoning
  • Plautdietsch: onveninftich — contrary to logic; lacking sense or sound reasoning
  • Polish: nielogiczny — contrary to logic; lacking sense or sound reasoning
  • Portuguese: ilógico — contrary to logic; lacking sense or sound reasoning
  • Portuguese: antilógico — contrary to logic; lacking sense or sound reasoning
  • Romanian: ilogic — contrary to logic; lacking sense or sound reasoning
  • Romanian: nelogic — contrary to logic; lacking sense or sound reasoning
  • Russian: нелоги́чный (nelogíčnyj) — contrary to logic; lacking sense or sound reasoning
  • Spanish: ilógico — contrary to logic; lacking sense or sound reasoning
  • Swedish: ologisk — contrary to logic; lacking sense or sound reasoning
  • Thai: ไร้เหตุผล (Rị̂ h̄etup̄hl) — contrary to logic; lacking sense or sound reasoning
  • Turkish: mantıksız — contrary to logic; lacking sense or sound reasoning
  • Ukrainian: нелогі́чний (nelohíčnyj) — contrary to logic; lacking sense or sound reasoning
  • Vietnamese: phi lôgic — contrary to logic; lacking sense or sound reasoning