陳腐化 ちんぷか Meanings Noun, する verb obsolescence; becoming obsolete (of a product, etc.) Kanji 陳 display. Read as チン. 腐 rot 化 transform. Read as カ. Words containing 陳腐化 計画的陳腐化 (けいかくてきちんぷか) planned obsolescence Jinuma: Japanese Dictionary · Word lists