HIDEOUSLY
hideously, horridly, monstrously
(adverb) in a hideous manner; “her face was hideously disfigured after the accident”
Source: WordNet® 3.1
Etymology
Adverb
hideously (comparative more hideously, superlative most hideously)
In a hideous manner.
(degree) To an extreme degree
Source: Wiktionary
HIDEOUS
Hid"e*ous, a. Etym: [OE. hidous, OF. hidous, hidos, hidus, hisdos,
hisdous, F. hideux: cf. OF. hide, hisde, fright; of uncertain origin;
cf. OHG. egidi horror, or L. hispidosus, for hispidus rough, bristly,
E. hispid.]
1. Frightful, shocking, or offensive to the eyes; dreadful to behold;
as, a hideous monster; hideous looks. "A piteous and hideous
spectacle." Macaulay.
2. Distressing or offensive to the ear; exciting terror or dismay;
as, a hideous noise. "Hideous cries." Shak.
3. Hateful; shocking. "Sure, you have some hideous matter to
deliver." Shak.
Syn.
– Frightful; ghastly; grim; grisly; horrid; dreadful; terrible.
– Hid"e*ous*ly, adv.
– Hid"e*ous*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition