Is “Rapidly” a Scrabble word?
Yes
RAPIDLY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Rapidly
/ˈɹæpɪdli/
adverb
1.With speed; in a rapid manner.
“She packed her case rapidly and hurried out.”
Synonyms: quickly, speedily