faulty logic

[FAW-tee LAH-jik]
noun phrase
lógica falha
1. reasoning that contains errors, flaws, or invalid conclusions; reasoning that does not follow sound principles of logical thinking
The argument contains faulty logic because it assumes all teenagers are irresponsible.
O argumento contém lógica falha porque assume que todos os adolescentes são irresponsáveis.
2. a logical fallacy or error in reasoning that leads to an incorrect or unsupported conclusion
His faulty logic led him to reject the proposal without proper evidence.
Sua lógica falha o levou a rejeitar a proposta sem evidência apropriada.
In both American and Brazilian contexts, identifying 'faulty logic' is valued in academic and professional settings. In Brazil, critical thinking and exposure of logical fallacies is emphasized in educational discourse. The phrase is commonly used in debates, academic writing, and professional criticism to point out errors in reasoning without attacking the person directly.
NYC Slang
bad logic, twisted reasoning, garbage argument
Synonyms / Sinônimos
flawed reasoninglogical fallacydefective reasoningunsound logicillogical thinking
Antonyms / Antônimos
sound logicvalid reasoningcorrect logiclogical consistencysound reasoning

Regional Variations

General Brazilian
lógica falha
Most common and standard term used in Brazilian Portuguese
General Brazilian
raciocínio deficiente
Alternative term emphasizing defective reasoning
Portugal
lógica falha
Same as Brazilian Portuguese; widely understood across Portuguese-speaking regions
Academic contexts
falácia lógica
More formal term used in philosophical and academic discussions

Related Words

logical fallacyreasoningargumentrationalitysophistryinferencedeductioncognition

Related Idioms & Phrases

flawed argument
logical fallacy
circular reasoning
jumping to conclusions
non sequitur
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