unconvincingness
[/ˌʌnkənˈvɪnsɪŋnəs/]
noun
falta de convicção; caráter não convincente; pouca persuasão
1. the quality or state of failing to convince; lack of persuasiveness or credibility
The unconvincingness of his argument made the audience skeptical.
A falta de convicção do seu argumento deixou o público cético.
2. the characteristic of being unable to produce belief or acceptance in someone
The unconvincingness of the evidence weakened the prosecution's case.
O caráter não convincente das provas enfraqueceu o caso da acusação.
This term is commonly used in legal, academic, and business contexts in both the US and Brazil to critique arguments, evidence, or presentations that fail to persuade. In Brazilian Portuguese, the concept is often expressed through the more direct phrase 'falta de convicção' rather than creating a noun form from the adjective.
NYC Slang
the bunk; not buying it; weak sauce
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