Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun open_marriage
1 sense of open marriage
Sense 1
open marriage -- (a marriage in which each partner is free to enter into extraneous sexual relationships without guilt or jealousy from the other)
=> marriage, matrimony, union, spousal relationship, wedlock -- (the state of being a married couple voluntarily joined for life (or until divorce); "a long and happy marriage"; "God bless this union")