Phrase guide

fallacy fallacy

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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  • General-American, Received-Pronunciation: /ˌfæləsi ˈfæləsi/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The formal fallacy of inferring that if an argument contains a fallacy, its conclusion must be false.

Definition source: English Wiktionary via Wiktextract

Topics: human-sciences, logic, mathematics, philosophy, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: argument from fallacy, argument to logic, argumentum ad logicam, bad reasons fallacy, fallacist's fallacy

Antonyms: none provided

History

Etymology

From the fact that assuming a conclusion is false because of a fallacy in the reasoning is itself a fallacy.

Across languages

Translations

2 source translations are retained for this English entry.

  • Chinese Mandarin: 謬誤謬誤 /谬误谬误 (miùwùmiùwù) — formal fallacy of inferring that if an argument contains a fallacy, its conclusion must be false
  • Spanish: argumento desde la falacia — formal fallacy of inferring that if an argument contains a fallacy, its conclusion must be false