Dependable (adjective)
Able, or easily able to be depended on.
“He was a very dependable person.”
Dependable (noun)
A reliable person or thing.
Reliable (adjective)
Suitable or relied on; worthy of dependence or reliance; trustworthy
Reliable (adjective)
Such that either a sent packet will reach its destination, even if it requires retransmission, or the sender will be told that it didn’t
Reliable (noun)
Something or someone reliable or dependable
“the old reliables”
Wiktionary