frenziedly, strenuously, strong, hard, frantically.
He had fallen furiously
in love with the lady, believing her to be the victim of a jealous husband.
In another moment he was running furiously
towards them, and so far as he could remember afterwards none of the men in whose charge he had been troubled themselves about him.
Gray Brother and the Three growled furiously,
beginning, " So long as we live none shall dare-" But Baloo checked them.