1. A person who is reliable, trustworthy, and can be counted on to fulfill responsibilities and commitments
John is a dependable person; you can always count on him to meet deadlines.
João é uma pessoa confiável; você sempre pode contar com ele para cumprir prazos.
2. Someone whose behavior and performance are consistent and predictable in a positive way
She is a dependable person who never lets her team down.
Ela é uma pessoa confiável que nunca decepciona seu time.