Reliable
Part of speech: noun
Definition: Something or someone reliable
Part of speech: adjective
Definition: Suitable or fit to be relied on; worthy of dependence or reliance; trustworthy 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
Example sentence: Promises are the uniquely human way of ordering the future, making it predictable and reliable to the extent that this is humanly possible.
Authentic
Part of speech: adjective
Definition: Of the same origin as claimed; genuine.Conforming to reality and therefore worthy of trust, reliance, or belief.Having authority.
Example sentence: You don't have to change who you are for anyone: if you are your regular, authentic, confident self, then you can push to do whatever you want.