劣化(れっか)

れっか
noun, suru verb
deterioration; degradation
1. deterioration; degradation
The process of becoming worse in quality, condition, or value over time; decay or decline.
画質(がしつ)が劣化(れっか)した。
The image quality degraded.
電池(でんち)が劣化(れっか)して容量(ようりょう)が減(へ)った。
The battery deteriorated and its capacity decreased.
経年(けいねん)劣化(れっか)によりゴムが固(かた)くなった。
The rubber hardened due to deterioration over time.

COMMON COLLOCATIONS:

  • 画質(がしつ)の劣化(れっか) - image quality degradation
  • 音質(おんしつ)の劣化(れっか) - sound quality degradation
  • 経年(けいねん)劣化(れっか) - deterioration over time, aging
  • 品質(ひんしつ)の劣化(れっか) - quality degradation
  • 電池(でんち)の劣化(れっか) - battery degradation

USAGE:
Used for both physical deterioration and abstract quality decline.

RELATED WORDS:

  • 老朽化(ろうきゅうか) - aging, becoming decrepit (infrastructure)
  • 腐食(ふしょく) - corrosion
  • 悪化(あっか) - worsening

Related Words

Related: 老朽化(ろうきゅうか) (aging)
general
Added 2026.1.20 22:21 · Revised 2026.1.24 23:24
07500/07647_rekka