単たん婚こんたんこんMeanings1noun, noun which may take the genitive case particle 'no'monogamyrare termRare term for monogamy; the more common word is 一夫一妻 (いっぷいっさい). Used in academic or formal contexts.See also: 一夫一妻単たん婚こんは一いっ夫ぷ一いっ妻さいの婚こん姻いん形けい態たいを