劣化|れっかrekka[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, intransitive verbdeterioration (in quality, performance, etc.); degradation; worsening
  2. noun, suru verb, intransitive verb(visible) aging; becoming unattractive (due to aging)
Conjugation
Dictionary form劣化する(れっかする)
Polite (masu)劣化します(れっかします)
Negative (nai)劣化しない(れっかしない)
polite (masen)劣化しません(れっかしません)
classical zu / nu劣化せず・劣化せぬ(れっかせず・れっかせぬ)
Past (ta)劣化した(れっかした)
polite (mashita)劣化しました(れっかしました)
Past negative (nakatta)劣化しなかった(れっかしなかった)
polite (masen deshita)劣化しませんでした(れっかしませんでした)
Te form劣化して(れっかして)
Potential劣化できる(れっかできる)
Passive劣化される(れっかされる)
Causative劣化させる(れっかさせる)
Causative passive劣化させられる(れっかさせられる)
Conditional (ba)劣化すれば(れっかすれば)
tara劣化したら(れっかしたら)
Volitional劣化しよう(れっかしよう)
polite (mashou)劣化しましょう(れっかしましょう)
Imperative劣化しろ(れっかしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym低下ていかNeutralRefers to a level or degree dropping, as in 「視力低下」; 「劣化」 is about a material's quality or performance wearing down over time.
  • Synonym悪化あっかNeutralDescribes a situation getting worse, as in 「病状悪化」; 「劣化」 is used when an object's quality or performance declines.
  • Antonym向上こうじょうNeutralMeans improvement or advancement; it is the opposite of 「劣化」 in the sense of getting better rather than worse.
  • AntonymかいぜんNeutralMeans making something better or fixing what is wrong; the opposite of 「劣化」 in the better-versus-worse direction.
  • Antonym進歩しんぽNeutralMeans progress or development; it stands opposite to 「劣化」 as advancing versus degrading.
  • Antonym強化きょうかNeutralMeans strengthening or reinforcing; the opposite of 「劣化」 in making something stronger rather than weaker.

Use 「劣化」 when a material's quality or performance worsens over time, as in 「経年劣化」 or 「電池の劣化」. For a level dropping use 「低下」, for a situation worsening 「悪化」; the opposites are 「向上」, 「改善」 and 「強化」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 品質ひんしつや性能せいのうなどが低下ていかすること。
Kanji in this word
English equivalents

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