Reliable vs. trustworthy
Lielisks skaidrojums :D

Reliable means that you will consistently behave in a certain way; trustworthy means that you can be given responsibility for doing or looking after something valuable with high confidence that you will do it.

They often go together, but not always - for instance, if you (foolishly) trust me with £20, you might reliably expect me to go and spend it on beer. I am reliable, but I'm not trustworthy. On the other hand, perhaps you can trust my wife to put the money in a safe place, but she might not remember where that safe place is. She's trustworthy, but not reliable.

(No šejienes.)