deteriorate
Intermediate (B1)
IPA: /dɪˈtɪə.ri.ə.reɪt/
KK: /dɪˈtɪrɪəˌreɪt/
intransitive verb
Definition
To become worse or to decline in quality or condition.
Example
The old building began to deteriorate after years of neglect.
Tense Forms
Past: deteriorated
Past Participle: deteriorated
Conversation
Have you noticed how the paint on the house is starting to deteriorate?
Yeah, it looks pretty rough, doesn't it?
I guess we should think about getting it repainted before it gets worse.
Definitely! If we wait too long, it might really deteriorate.
Synonyms & Antonyms
Synonyms
decline
worsen
degrade
Antonyms
improve
enhance
flourish
transitive verb
Definition
To become worse in quality, condition, or value over time, often due to neglect or damage.
Example
The old building began to deteriorate after years of being abandoned.
Tense Forms
Past: deteriorated
Past Participle: deteriorated
Conversation
I heard the old library is starting to deteriorate from lack of maintenance.
Really? That's such a shame; it had so much character.
Yeah, I hope they can find the funds to restore it before it gets worse.
Root Explanation
Deteriorate → It is formed from "de-" (meaning down or away) and "terere" (meaning to rub or wear away). The word describes the process of something wearing down or becoming worse over time.
Memory Tip
Think of something being 'rubbed down' ('terere') or 'worn away' ('de-') — that's why deteriorate means to become worse.
Visually Confused Words
exteriorate
undeteriorated