計画けいかくてき陳腐ちんぷではありませんでした
keikaku teki chimpukadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 計画的陳腐化

1. Was not planned obsolescence.; Was not systematic deterioration.

Past/Perfective
Negative
Polite
Formal Register