interventionism

noun

in·​ter·​ven·​tion·​ism ˌin-tər-ˈven(t)-shə-ˌni-zəm 

: the theory or practice of intervening

specifically : governmental interference in economic affairs at home or in political affairs of another country

interventionist

ˌin-tər-ˈven(t)-shə-nist 

-ˈvench-nist

noun or adjective

Examples of interventionism in a Sentence

a proponent of aggressive economic interventionism

Recent Examples on the Web

And governments abroad accustomed to Trump’s lack of predictability now face a president whose entire philosophy toward foreign interventionism appears to have turned on a dime. —Los Angeles Times, 8 Jan. 2026

To declare war on immigrants, many of whom are fleeing persecution and violence fomented by past American interventionism, requires a powerful, blinding narrative strong enough to smokescreen the degradation and dehumanization at the core of the messaging. —Brady Brickner-Wood, New Yorker, 7 Jan. 2026

This claim — and the American military intervention in Venezuela this weekend — has outraged some in neighboring Colombia, particularly those on the left, who warn of American interventionism and regional hegemony. —Matt Nighswander, NBC news, 7 Jan. 2026

Which leads us to Trump’s interventionism. —Merrill Matthews, Washington Post, 7 Jan. 2026

Word History

First Known Use

1923, in the meaning defined above

Rhymes for interventionism

• absolutism
• adventurism
• aestheticism
• africanism
• agnosticism
• alcoholism
• anabolism
• anachronism
• anglicanism
• antagonism
• arianism
• asceticism