deleterious (C1)

adjective

Pronunciation: /ˌdɛlɪˈtɪəriəs/

Definition

Causing harm or damage, often in a subtle or gradual way.

Examples

• The deleterious impact of pollution on the environment is becoming increasingly evident.

• Lack of sleep can have a deleterious effect on concentration and mood.

• Scientists are studying the deleterious consequences of microplastics in our food chain.

Synonyms of deleterious

Words with a similar meaning to deleterious:

• harmful
• detrimental
• damaging
• pernicious

Antonyms of deleterious

Words with the opposite meaning to deleterious:

• beneficial
• advantageous

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