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deteriorate

de·te·ri·o·rate

deteriorate

 
 
pronunciation:
dih tir i reIt
parts of speech:
verb, transitive verb
part of speech: verb
inflections: deteriorated, deteriorates, deteriorating
definition: to become less in value or quality; decline.
The teacher thinks the quality of his homework has deteriorated.
antonyms:
improve
similar words:
decline, slip, suffer, wear
 
part of speech: transitive verb
definition: to cause damage to, especially little by little.
Eating poorly has deteriorated her health.
synonyms:
hurt
antonyms:
improve, restore
derivation: deterioration (n.)