VIRULENTLY
virulently
(adverb) in a virulent manner; “an old woman advanced a few paces to shake her fist virulently in my face”
Source: WordNet® 3.1
Etymology
Adverb
virulently (comparative more virulently, superlative most virulently)
in a virulent manner
Source: Wiktionary
Vir"u*lent*ly, adv.
Definition: In a virulent manner.
VIRULENT
Vir"u*lent, a. Etym: [L. virulentus, fr. virus poison: cf. F.
virulent. See Virus.]
1. Extremely poisonous or venomous; very active in doing injury.
A contagious disorder rendered more virulent by uncleanness. Sir W.
Scott.
2. Very bitter in enmity; actuated by a desire to injure; malignant;
as, a virulent invective.
Source: Webster’s Unabridged Dictionary 1913 Edition