OPPRESSIVELY
oppressively
(adverb) in a heavy and oppressive way; “it was oppressively hot in the office”
Source: WordNet® 3.1
Etymology
Adverb
oppressively (comparative more oppressively, superlative most oppressively)
In an oppressive manner.
Source: Wiktionary
OPPRESSIVE
Op*press"ive, a. Etym: [Cf. F. oppressif.]
1. Unreasonably burdensome; unjustly severe, rigorous, or harsh; as,
oppressive taxes; oppressive exactions of service; an oppressive game
law. Macaulay.
2. Using oppression; tyrannical; as, oppressive authority or
commands.
3. Heavy; overpowering; hard to be borne; as, oppressive grief or
woe.
To ease the soul of one oppressive weight. Pope.
– Op*press"ive*ly, adv.
– Op*press"ive*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition