When we label something as reliable, we’re acknowledging that it consistently meets expectations. For example, consider a reliable car that starts every morning without fail. On the other hand, dependable connotes a deeper level of trust and assurance.

"Reliably" is an adverb describing how something is done consistently and dependably, while "reliable" is an adjective describing someone or something as dependable or trustworthy.

You can't always count on him to do what he says he'll do. We can't write a report without reliable data. We need more reliable information before we can take action.