participation in risky businesses without reference to proper processes and possible effects, particularly the careless input by a nation inside affairs of another nation or region: "US strategic interests would . . . be even more jeopardized by Soviet adventurism in the centre East” ( Christopher T. Rand).
recklessness in politics or foreign affairs.
The ways, habits, and systems associated with the adventurer or adventuress; the practices, pretenses, or experiences of those which stay by their wits.