1. Support that is beyond doubt, indisputable, or absolute in nature; backing that cannot be challenged or disputed
The organization received unquestionable support from its members during the crisis.
A organização recebeu apoio inquestionável de seus membros durante a crise.
2. Unwavering assistance or endorsement that is clear and undeniable
The president's unquestionable support for the new policy was evident in his speech.
O apoio inquestionável do presidente à nova política era evidente em seu discurso.