Mercilessly

['mɝsɪlɪsli]

(adv.) without pity; in a merciless manner; 'he was mercilessly trounced by his opponent in the House'.

Typist: Norton--From WordNet

I triumphed over her mercilessly. Charlotte Bronte. Shirley.
No, said the girl, speaking to herself, but keeping her eyes still mercilessly fixed on me. Wilkie Collins. The Moonstone.

Typist: Norton