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Adverse vs. Averse
Many people find themselves confused when faced with the choice between adverse and averse. While these two adjectives have many similarities, they are not used interchangeably.
If you want to describe a negative reaction to something (such as a harmful side effect from medication) or dangerous meteorological conditions (such as a snowstorm), adverse is the correct choice; you would not say that you had an averse reaction to medication or that there was averse weather.
Averse is most commonly followed by the preposition to (as in "she is averse to shellfish"), but not in every case; you can, for example, describe someone as “risk averse." Normally, averse to signifies a degree of dislike and avoidance, but when preceded by the word not (as in “he was not averse to having another drink”), it may be used as a pointedly understated way to express an interest in something.
In short, adverse tends to be used to describe effects, conditions, and results; while averse refers to feelings and inclinations.
Examples of averse in a Sentence
Ed Meza, Variety, 5 Sep. 2025
Schiffer said Meghan had been too risk averse in the first two seasons, but could try to pitch a slightly different concept for a third season that pushed the boundaries far more.
—Jack Royston, MSNBC Newsweek, 4 Sep. 2025
Both industries involve risk-averse buyers making decisions about protecting valuable assets.
—Lee Salisbury, Forbes.com, 2 Sep. 2025
But then those people got fired and replaced by this group with members who are science-averse and anti-vaccine.
—Isaac Chotiner, New Yorker, 31 Aug. 2025
See All Example Sentences for averse
Cite this Entry
“Averse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/averse. Accessed 7 Sep. 2025.
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averse
adjective
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