a person who practices or favors polygyny.

Origin of polygynist

First recorded in 1875–80; polygyn(y) + -ist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for polygynist

Historical Examples of polygynist

  • It may now be asked why the polygynist nations have not gravitated to monogamy, like the latter-day saints of Salt Lake City.

    Getting Married

    George Bernard Shaw