open marriage
Noun
Meaning
a marriage in which each partner is free to enter into extraneous sexual relationships without guilt or jealousy from the other
Source: WordNetSynonyms
polygamy
bigamy
polygamist
polygyny
polyandry
deuterogamy
digamy
open relationship
outside marriage
casual dating
dual marriage
extra wives
straight marriage
consensual non-monogamy
free wedding
Show all synonyms