Is “Breathtakingly” a Scrabble word?
Yes
BREATHTAKINGLY
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 Breathtakingly
/ˈbɹɛθˌteɪ.kɪŋ.li/
adverb
1.In a breathtaking manner.
“The view was breathtakingly beautiful.”
2.To a degree that causes shock or awe; shockingly.
“It was a breathtakingly foolish thing to say in public.”