Adventureful

an exciting or very unusual experience.
partic-p-tion in exciting undertakings or enterprises:
the spirit of adventure.
a bold, usually risky undertaking; hazardous action of uncertain outcome.
a commercial or financial speculation of any kind; venture.
obsolete.

peril; danger; risk.
chance; fortune; luck.

to risk or hazard.
to take the chance of; dare.
to venture to say or utter:
to adventure an opinion.
to take the risk involved.
to venture; hazard.
historical examples

early in the next year occurred a strange and romantic adventure in this adventureful country.
a lady’s tour in corsica, vol. ii (of 2) gertrude forde

noun
a risky undertaking of unknown outcome
an exciting or unexpected event or course of events
a hazardous financial operation; commercial speculation
(obsolete)

danger or misadventure
chance

verb
to take a risk or put at risk
(intransitive) foll by into, on, upon. to dare to go or enter (into a place, dangerous activity, etc)
to dare to say (something): he adventured his opinion
n.

c.1200, auenture “that which happens by chance, fortune, luck,” from old french aventure (11c.) “chance, accident, occurrence, event, happening,” from latin adventura (res) “(a thing) about to happen,” from adventurus, future participle of advenire “to come to, reach, arrive at,” from ad- “to” (see ad-) + venire “to come” (see venue).

meaning developed through “risk/danger” (a trial of one’s chances), c.1300, and “perilous undertaking” (late 14c.) and thence to “a novel or exciting incident” (1560s). earlier it also meant “a wonder, a miracle; accounts of marvelous things” (13c.). the -d- was restored 15c.-16c. venture is a 15c. variant.
v.

c.1300, “to risk the loss of,” from adventure (n.). meaning “to take a chance” is early 14c. related: adventured; adventuring.