[ uh-sim-uh-ley-shuh-niz-uh m ]
/ əˌsɪm əˈleɪ ʃəˌnɪz əm /


the practice or policy of assimilating or encouraging the assimilation of people from all ethnic groups and cultures of origin: In the 1900s, some immigrants at first resisted the assimilationism of the New World.


Can You Ace This Quiz About “Compliment” vs. “Complement”?
Take this quiz to see if you really know the difference between “compliment” and “complement"!
Question 1 of 11
“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.

Origin of assimilationism

First recorded in 1950–55; assimilation + -ism

OTHER WORDS FROM assimilationism

as·sim·i·la·tion·ist, noun, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020