unhealthy

adjective

un·​healthy ˌən-ˈhel-thē How to pronounce unhealthy (audio)
unhealthier; unhealthiest
1
: not conducive to health : not healthful
an unhealthy climate
unhealthy habits
unhealthy foods
2
: not in good health : sickly, diseased
unhealthy animals
3
a
: risky, unsound
an unhealthy economy
b
: of a harmful nature : bad, injurious
unhealthy levels of lead
c
: morally contaminated : corrupt, unwholesome
an unhealthy imagination
unhealthily adverb
unhealthiness noun

Examples of unhealthy in a Sentence

Her skin looks blotchy and unhealthy. Tests revealed an unhealthy level of lead in the water. Eating honey can be unhealthy for babies. He was stuck in an unhealthy relationship. She has an unhealthy interest in natural disasters.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Air quality concerns Unfortunately, Zehr said any smoke being output by smoldering fires, when combined with light winds, can lead to pollutants being trapped rather than dispersed, creating unhealthy air quality concerns. Doyle Rice, USA TODAY, 11 Jan. 2025 But without self-reflection, old relationship patterns can quietly resurface, pulling you back into familiar and unhealthy dynamics. Mark Travers, Forbes, 11 Jan. 2025 Photograph: Robyn Beck/Getty As a series of massive fires continues to blaze through the Los Angeles area, blanketing neighborhoods with smoke and forcing thousands of people to evacuate their homes, air quality remains unhealthy throughout many parts of the county. Emily Mullin, WIRED, 10 Jan. 2025 The smoke is that thick in some areas and an unhealthy air quality alert was issued for the region. Roderick Boone, Charlotte Observer, 9 Jan. 2025 See all Example Sentences for unhealthy 

Word History

First Known Use

1595, in the meaning defined at sense 1

Time Traveler
The first known use of unhealthy was in 1595

Dictionary Entries Near unhealthy

Cite this Entry

“Unhealthy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unhealthy. Accessed 20 Jan. 2025.

Kids Definition

unhealthy

adjective
un·​healthy ˌən-ˈhel-thē How to pronounce unhealthy (audio)
1
: not conducive to good health : not healthful
an unhealthy climate
2
: not in good health : sickly, diseased
3
a
: risky, unsound
an unhealthy economy
b
unhealthily adverb
unhealthiness noun

Medical Definition

unhealthy

adjective
un·​healthy -ˈhel-thē How to pronounce unhealthy (audio)
unhealthier; unhealthiest
1
: not conducive to health
an unhealthy climate
2
: not in good health : sickly
unhealthiness noun

More from Merriam-Webster on unhealthy

Last Updated: - Updated example sentences
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