ODIOUSLY
detestably, repulsively, abominably, odiously
(adverb) in an offensive and hateful manner; “I don’t know anyone who could have behaved so abominably”
Source: WordNet® 3.1
Etymology
Adverb
odiously (comparative more odiously, superlative most odiously)
In an odious manner.
Source: Wiktionary
ODIOUS
O"di*ous, a. Etym: [L. odiosus, from odium hatred: cf. F. odieux. See
Odium.]
1. Hateful; deserving or receiving hatred; as, an odious name,
system, vice. "All wickedness will be most odious." Sprat.
He rendered himself odious to the Parliament. Clarendon.
2. Causing or provoking hatred, repugnance, or disgust; offensive;
disagreeable; repulsive; as, an odious sight; an odious smell.
Milton.
The odious side of that polity. Macaulay.
Syn.
– Hateful; detestable; abominable; disgusting; loathsome;
invidious; repulsive; forbidding; unpopular.
– O"di*ous`ly. adv.
– O"di*ous*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition