1. A logical argument or process of thinking that contains errors, flaws, or incorrect conclusions
The defendant's lawyer pointed out the faulty reasoning in the prosecutor's argument.
O advogado do réu apontou o raciocínio falho no argumento do promotor.
2. Flawed logic that does not follow proper rules of deduction or induction
The study's conclusions were based on faulty reasoning and weak evidence.
As conclusões do estudo eram baseadas em raciocínio falho e evidências fracas.