vastly
/ˈvæstli/
Proposed by a contributor, not yet supported by evidence.
Meaning · English
Greatly, in a vast manner.
Adverb
Examples
“I have visited my quarters, and find them very comfortable.[…]Steerage is like everything else maritime[…]vastly improved since Robert Louis Stevenson took his trip third class to New York.”
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “vastly” mean?
Greatly, in a vast manner.
Is “vastly” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.