What is some synonyms for gravely?

Here are some synonyms for "gravely", depending on the context you're using it in:

For seriousness and solemnity:

* Seriously

* Solemnly

* Earnestly

* Severely

* Somberly

* With gravity

For danger or illness:

* Dangerously

* Critically

* Seriously

* Precariously

* Perilously

* In a precarious state

For a deep, low voice:

* Deeply

* Hoarsely

* Resonantly

* With a low voice

For slow and deliberate:

* Slowly

* Deliberately

* Steadily

* With care

Please provide more context about how you're using "gravely" and I can give you more specific synonyms.