heterosexual marriage; opposite-sex marriage
Refers to marriage between a man and a woman, often used in contrast with 同性結婚 (same-sex marriage).
There was a time when opposite-sex marriage was taken for granted.
Discuss the legal differences between opposite-sex marriage and same-sex marriage.
Same-sex marriage; the direct counterpart to 異性結婚.
General term for marriage; 異性結婚 specifies the heterosexual nature.
Compound of 異性 (opposite sex) and 結婚 (marriage).