downgrade

格下げする

物事の地位、評価、等級などを下げる。

やさしい英語で： To give something a lower rank, rating, or level.

• The agency downgraded the bank.
• They downgraded his ticket to economy class.
• The alert was downgraded after the storm weakened.

使い方： downgrade something from A to B (The agency downgraded the rating from A to B.); downgrade something to something (Officials downgraded the storm to a tropical depression.)

類義語： lower, demote

反対語： upgrade, promote

よく使う表現： downgrade a rating, downgrade something to something, downgrade a threat

格下げ

質や信頼性が劣ると判断され、評価が下がること。

やさしい英語で： A change to a lower rating because something is judged less good or less reliable.

• The bank suffered a credit downgrade.
• Investors sold their shares after the downgrade.
• Another rating downgrade could make borrowing more expensive.

使い方： downgrade of something (The downgrade of the bonds worried investors.)

類義語： rating reduction

反対語： upgrade

よく使う表現： credit downgrade, rating downgrade, downgrade of something

品質低下、ダウングレード

物の質が下がったり、便利な機能が減ったりする変更。

やさしい英語で： A change that makes something worse or gives it fewer useful features.

• This room is a downgrade.
• The cheaper screen was a noticeable downgrade in quality.
• The software downgrade removed several useful features.

使い方： downgrade in something (The new seats represent a downgrade in comfort.)

類義語： reduction, deterioration

反対語： upgrade, improvement

よく使う表現： a major downgrade, downgrade in quality, software downgrade