1. Support that is uncertain, hesitant, or conditional; backing given without full commitment or confidence
The proposal received tentative support from the committee, pending further review.
A proposta recebeu apoio provisório do comitê, aguardando revisão posterior.
2. Preliminary or exploratory endorsement that may change with additional information
She gave tentative support to the plan but wanted to see more data first.
Ela deu apoio provisório ao plano, mas queria ver mais dados primeiro.