1. Having only one meaning; clear and unmistakable; leaving no doubt or ambiguity
The evidence was unequivocal proof of his guilt.
A evidência era uma prova unívoca de sua culpa.
2. In logic and mathematics: having a one-to-one correspondence; relating to terms with a single, fixed meaning
In formal logic, we need unequivocal terms to avoid fallacies.
Em lógica formal, precisamos de termos unívocos para evitar falácias.