companionate marriage

See more synonyms for companionate marriage on Thesaurus.com
noun
  1. a form of marriage in which the partners agree not to have children and can be divorced by mutual consent, leaving neither spouse legally responsible for the financial welfare of the other.

Origin of companionate marriage

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018