1. Consistent, steadfast, and reliable support or endorsement that does not falter or weaken
The candidate received unwavering backing from the community throughout the campaign.
O candidato recebeu apoio inabalável da comunidade durante toda a campanha.
2. Firm commitment and loyalty that remains constant despite challenges or opposition
His unwavering backing of the project helped it succeed despite numerous obstacles.
Seu apoio inabalável ao projeto ajudou-o a ter sucesso apesar de vários obstáculos.