後こう代だいこうだいFreq.FrequencyTop 100,000Meanings1nounposterity; future generationsRefers to people who will live after the present time, often used in historical, cultural, or legacy contexts.この文ぶん化か遺い産さんを後こう代だいに伝つたえなければならない。We must pass this cultural heritage on to future generations.