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adversely

American  
[ad-vurs-lee] / ædˈvɜrs li /

adverb

  1. in a negative, contrary, or unfavorable way or direction.

    The report details eleven risk factors that the authors believe adversely affect children's development and well-being.


Other Word Forms

Etymology

Origin of adversely

adverse ( def. ) + -ly

Explanation

When something affects you adversely, it's harmful or negative. Holding a cinder block will adversely affect your running speed. When you talk about things that are acting adversely, they are harming something or holding it back in some way. Not getting enough sleep will adversely affect your performance in school. Rain will adversely affect an outdoor wedding. Anything that's making things worse instead of better is adversely influencing the situation. Adversely means something close to badly or harmfully. So when you see this word, you know something is going wrong.

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Vocabulary lists containing adversely

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She points out legal ramifications that can adversely impact Jim, as well as the original owner of the account.

From MarketWatch • Jun. 17, 2026

"When beef is consumed as part of a healthy dietary pattern, it helps fill essential nutritional gaps and does not adversely impact the cardiometabolic risk profile compared to poultry."

From Science Daily • May 22, 2026

Under Canadian law, governments have a duty to consult indigenous groups on conduct that might adversely impact their treaty rights.

From The Wall Street Journal • May 13, 2026

She said that more needed to be done to prevent false claims but cautioned that it was important that this did not adversely affect genuine victims.

From BBC • Apr. 28, 2026

Some very recent work indicates that reproduction of birds may be adversely affected by these and certain other herbicides at levels far below those that cause death.

From "Silent Spring" by Rachel Carson

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