外がい婚こんがいこんMeanings1nounexogamyAnthropological term for the custom of marrying outside one's own group, clan, or tribe. Contrasts with 内婚 (endogamy).See also: 内婚この部ぶ族ぞくでは外がい婚こんが厳きびしく守まもられている。Exogamy is strictly observed in this tribe.