: improvisation or experimentation (as in politics or military or foreign affairs) in the absence or in defiance of accepted plans or principles

Examples of adventurism in a Sentence

Recent Examples on the Web
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That, in turn, made Russia’s remaining liberals a domestic political target, because as the consequences of its adventurism increasingly come home, even the potential for limited dissent has become a threat to the Kremlin’s preferred worldview. Ilan Berman, Forbes.com, 17 Aug. 2026 Over time, restrictions created by excessive military adventurism will increasingly shape policy choices elsewhere, too. Emma Ashford, Foreign Affairs, 12 Aug. 2026 Trump began this war assuming that all other issues—nuclear weapons, terrorism, Iran’s regional adventurism—would vanish when the regime was toppled. Tom Nichols, The Atlantic, 25 May 2026 The most explicit objector was Vance, who has been consistently opposed to foreign adventurism, and to this Iran war in particular. Andreas Kluth, Mercury News, 18 Apr. 2026 See All Example Sentences for adventurism

Word History

Etymology

adventure entry 1 + -ism, in part after Russian avantjurizm

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of adventurism was in 1932

Browse Nearby Words

Cite this Entry

“Adventurism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adventurism. Accessed 1 Sep. 2026.

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