HAZARDOUSLY

perilously, hazardously, dangerously

(adverb) in a dangerous manner; “he came dangerously close to falling off the ledge”

Source: WordNet® 3.1

Etymology

Adverb

hazardously (comparative more hazardously, superlative most hazardously)

In a hazardous manner.

Source: Wiktionary

HAZARDOUS

Haz"ard*ous, a. Etym: [Cf. F. hasardeux.]

Definition: Exposed to hazard; dangerous; risky. To enterprise so hazardous and high! Milton.

Syn.

– Perilous; dangerous; bold; daring; adventurous; venturesome; precarious; uncertain.

– Haz"ard*ous*ly, adv.

– Haz"ard*ous*ness, n.

Source: Webster’s Unabridged Dictionary 1913 Edition