n.名詞子供のような大人The toy store is targeting kidults with its new line of collectibles.
n.名詞子供心を持った大人向けの市場The kidult market is growing rapidly, with adults spending more on toys and games.
adj.形容詞子供っぽいThe party had a kidult theme, with nostalgic games and decorations.
n.名詞子供じみた行動Some people criticize the trend of kidult as a sign of arrested development.