Mightily (Adverb)
Meaning 1
(Southern regional intensive) very; to a great degree; "the baby is mighty cute"; "he's mighty tired"; "it is powerful humid"; "that boy is powerful big now"; "they have a right nice place"; "they rejoiced mightily".
Usages
Synonyms
Meaning 2
Powerfully or vigorously; "he strove mightily to achieve a better position in life".