deterioration

noun

de·​te·​ri·​o·​ra·​tion di-ˌtir-ē-ə-ˈrā-shən 

dē-

: the action or process of becoming impaired or inferior in quality, functioning, or condition : the state of having deteriorated

rust deterioration

the deterioration of academic standards

Synonyms of deterioration

• weakening
• decay
• decline
• decaying

Choose the Right Synonym for deterioration

deterioration, degeneration, decadence, decline mean the falling from a higher to a lower level in quality, character, or vitality.

deterioration implies generally the impairment of value or usefulness.

the deterioration of the house through neglect

degeneration stresses physical, intellectual, or especially moral retrogression.

the degeneration of their youthful idealism into cynicism

decadence presupposes a reaching and passing the peak of development and implies a turn downward with a consequent loss in vitality or energy.

cited love of luxury as a sign of cultural decadence

decline differs from decadence in suggesting a more markedly downward direction and greater momentum as well as more obvious evidence of deterioration.

the meteoric decline of his career after the scandal

Examples of deterioration in a Sentence

the gradual deterioration of the weather

a deterioration of academic standards

Recent Examples on the Web

All of this comes after new reports of Nick Reiner’s deterioration. — Lizzie Lanuza, StyleCaster, 20 July 2026

Jackson said the sell-off reflected an unwinding of crowded AI momentum trades rather than a deterioration in the sector’s long-term fundamentals. — Lee Ying Shan, CNBC, 17 July 2026

The deterioration of the situation in the West Bank makes such diplomacy a matter of particular urgency. — Thomas Wright, The Atlantic, 16 July 2026

Witnesses argued the disaster exposed years of institutional deterioration, leaving hospitals, emergency responders and public infrastructure ill-prepared for one of the country’s worst natural disasters in decades. — Antonio María Delgado, Miami Herald, 15 July 2026

Word History

Etymology

see deteriorate

First Known Use

circa 1658, in the meaning defined above

Rhymes for deterioration

• abbreviation
• abomination
• acceleration
• accentuation
• accommodation
• accreditation
• acculturation
• accumulation
• acetylation
• adjudication
• administration
• adulteration

Medical Definition

deterioration

noun

de·​te·​ri·​o·​ra·​tion di-ˌtir-ē-ə-ˈrā-shən 

: the action or process of deteriorating : the state of having deteriorated

personality deterioration

neurological deterioration