1. the quality of being trustworthy or dependable; the ability to perform consistently and without failure
The reliability of this car has never been in question.
A confiabilidade deste carro nunca foi questionada.
2. the degree to which a measurement, test, or procedure produces consistent results
The test's reliability was confirmed through repeated trials.
A confiabilidade do teste foi confirmada através de testes repetidos.
3. the extent to which something can be depended upon to function properly
We chose this supplier based on their proven reliability.
Escolhemos este fornecedor com base na sua confiabilidade comprovada.