deteriorated
劣化した
解説 Definition
deteriorated は deteriorate（劣化する、悪化する）の過去形・過去分詞で、形容詞としても使われます。以前より品質や状態が悪くなったものを説明するときに使います。
Deteriorated describes something whose quality, condition, strength, or appearance has become worse over time. It commonly modifies damaged or weakened materials, structures, artworks, and other things that may require replacement, repair, or conservation.
覚え方のコツ Memory Tip
原形 deteriorate が e で終わるため、過去形・過去分詞では -d だけを加えて deteriorated となる。語尾は /ɪd/ と発音し、原形の最後の /t/ の後に一音節増える。deteriorated cables や deteriorated condition のように、すでに以前より悪くなった状態を表す。
Link deteriorated to the base verb deteriorate, “to become worse.” Because deteriorate already ends in e, form the past tense and past participle by adding only -d: deteriorate becomes deteriorated. The ending is pronounced /ɪd/ after the final /t/, so the new form has an extra syllable. Use it for a result that is already visible: deteriorated cables need replacement, a deteriorated bridge needs repair, and a deteriorated painting needs conservation. Unlike deteriorating, which emphasizes an ongoing process, deteriorated emphasizes the worse condition produced by that process.
例文
The bridge was in a deteriorated condition.
その橋は劣化した状態にありました。
We replaced the deteriorated cables last week.
私たちは先週、劣化したケーブルを交換しました。
The museum carefully repaired the deteriorated painting.
美術館は劣化した絵画を慎重に修復しました。
deteriorated の類義語・関連語
紛らわしい語
deteriorated の語源・成り立ち Etymology
deteriorated は deteriorate（悪化する、悪化させる）の過去形・過去分詞です。deteriorate は後期ラテン語 deteriorare（悪化させる）に由来し、その基になったラテン語 deterior は「より悪い」を意味します。つづりの似た deter（思いとどまらせる）とは語源が異なります。
Deteriorated is the past-tense and past-participle form of deteriorate. Deteriorate derives from Late Latin deteriorare, “to make worse,” based on Latin deterior, meaning “worse.” The English verb developed the intransitive sense “to become worse” as well as the transitive sense “to make worse.” The spelling is regular for a verb ending in e: only -d is added. Despite their similar beginnings, deteriorate is not derived from deter; the two words have different Latin histories.
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