Pronunciation contrast

adverse vs averse

Meaning, pronunciation, and examples

Adverse describes something unfavorable or harmful. Averse describes someone strongly opposed or unwilling, usually in the phrase “averse to.”

American English

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Word 1

adverse

adjective

ad-VURSS

Unfavorable, harmful, or likely to prevent success.

US pronunciation

/ædˈvɝːs/

UK IPA

/ədˈvɜːs/

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Word 2

averse

adjective

uh-VURSS

Strongly opposed to or unwilling to do something.

US pronunciation

/əˈvɝːs/

UK IPA

/əˈvɜːs/

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Sound contrast

Keep the D in adverse

For adverse, touch the tongue behind the upper teeth for D before moving to the lower-lip V. For averse, start lightly and move directly to V. Stress varies in adverse, but the D remains the strongest dependable contrast.

Direct answer

What is the difference?

Use adverse before a harmful condition, effect, or reaction. Use averse for a person's feeling of opposition or reluctance, normally followed by “to.” Both can end in stressed VURSS, but adverse keeps a D before V while averse moves from its opening vowel directly to V.

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6 example sentences

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Examples with

adverse

  1. The medicine caused no adverse effects.
  2. Flights were delayed by adverse weather conditions.
  3. The proposal received an adverse reaction from residents.

Examples with

averse

  1. She is not averse to changing the schedule.
  2. Some investors are averse to taking unnecessary risks.
  3. He seemed averse to discussing the problem publicly.

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Sources used for this guide

Content and pronunciation reviewed for General American and modern standard British English. Natural speech and usage vary by region, speaker, and context. Last reviewed .