こうほうごかんせい 後方互換性 LinksSentence search for 後方互換性Sentence search for こうほうごかんせいKanji details for 後, 方, 互, 換 and 性Edit in JMdict Noun1. backward compatibility; downward compatibilitySee also 上位互換性, See also 前方互換性 Discussions Log in to talk about this word.