Is “Rightly” a Scrabble word?
Yes
RIGHTLY
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 Rightly
/ˈɹaɪtli/
adverb
1.In a right manner, correctly, justifiably.
“I don't rightly know what he meant by that remark.”