To a profound degree (6)
I believe the answer is:
deeply
(Other definitions for deeply that I've seen before include "In a profound way" , "With intense feeling" , "With profundity" , "fathoms down?" , "Profoundly" .)
I believe the answer is:
deeply
(Other definitions for deeply that I've seen before include "In a profound way" , "With intense feeling" , "With profundity" , "fathoms down?" , "Profoundly" .)