unhealthful
adjective
un·health·ful
ˌən-ˈhelth-fəl 
also -ˈheltth-
: harmful to health of body or mind : unhealthy sense 1
unhealthful levels of water pollution
an unhealthful diet
an unhealthful tendency to worry
Examples of unhealthful in a Sentence
the unhealthful level of smog in the city
Recent Examples on the Web
The change comes amid concerns about fireworks causing unhealthful air.
—
Rong-Gong Lin Ii, Los Angeles Times, 19 June 2025
The unhealthful effects of autocracy remain robust even when accounting for economic differences and when excluding Venezuela and its collapsing health-care system.
—Thomas J. Bollyky, Foreign Affairs, 30 Jan. 2020
However, communities in the San Gabriel and San Bernardino mountains were still experiencing unhealthful air quality, according to the air district.
—Tony Briscoe, Los Angeles Times, 14 Sep. 2024
According to the agency’s map, very unhealthy air levels were detected in the Chino Valley and San Bernardino areas, unhealthful levels in the eastern San Gabriel Valley as well as Pomona, Perris, Corona, Riverside areas and far northern Orange County.
—Hannah Fry, Los Angeles Times, 9 Sep. 2024
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Rong-Gong Lin Ii, Los Angeles Times, 19 June 2025
The unhealthful effects of autocracy remain robust even when accounting for economic differences and when excluding Venezuela and its collapsing health-care system.
—Thomas J. Bollyky, Foreign Affairs, 30 Jan. 2020
However, communities in the San Gabriel and San Bernardino mountains were still experiencing unhealthful air quality, according to the air district.
—Tony Briscoe, Los Angeles Times, 14 Sep. 2024
According to the agency’s map, very unhealthy air levels were detected in the Chino Valley and San Bernardino areas, unhealthful levels in the eastern San Gabriel Valley as well as Pomona, Perris, Corona, Riverside areas and far northern Orange County.
—Hannah Fry, Los Angeles Times, 9 Sep. 2024
See All Example Sentences for unhealthful
Cite this Entry
“Unhealthful.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unhealthful. Accessed 19 Jul. 2025.
Copy CitationMedical Definition
unhealthful
adjective
un·health·ful
-ˈhelth-fəl
: detrimental to good health
unhealthful working conditions
unhealthfulness
noun
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