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Causing or conducive to poor health; unwholesome.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


another word for unhealthy
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ʌnˈhɛlθ fəl)

not conducive to good health; unwholesome.
un•health′ful•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.unhealthful - not sanitary or healthfulunhealthful - not sanitary or healthful; "unsanitary open sewers"; "grim and unsanitary conditions"
2.unhealthful - detrimental to good healthunhealthful - detrimental to good health; "unhealthful air pollution"; "unhealthful conditions in old apartments with peeling lead-based paint"
infected, septic - containing or resulting from disease-causing organisms; "a septic sore throat"; "a septic environment"; "septic sewage"
toxic - of or relating to or caused by a toxin or poison; "suffering from exposure to toxic substances"
unwholesome - detrimental to physical or moral well-being; "unwholesome food"; "unwholesome habits like smoking"
healthful - conducive to good health of body or mind; "a healthful climate"; "a healthful environment"; "healthful nutrition"; "healthful sleep"; "Dickens's relatively healthful exuberance"
3.unhealthful - detrimental to healthunhealthful - detrimental to health    
unwholesome - detrimental to physical or moral well-being; "unwholesome food"; "unwholesome habits like smoking"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
"The food is the same as in other prisons, -- that is, very bad; the lodging is very unhealthful, but, on the whole, passable for a dungeon; but it is not that which I wish to speak of, but a secret I have to reveal of the greatest importance."
All of which was spiritually unhealthful. He, who had been so merry-hearted, even merrier-hearted than his brother Jerry, began to grow saturnine, and peevish, and ill-tempered.
It strikes me as unnatural and unhealthful that men should be totally separated from women and herd through the world by themselves.
Was it not unhealthful? the stranger would ask, and the residents would answer, "Perhaps; but there is no telling."
Other factors that contributeto this decline include an unhealthful diet, a lack of exercise, certain medications, and some health problems, such as high blood pressure, diabetes, and stroke.
Other causes of unhealthful air quality are wood-burning stoves, coal-fired power plants and vehicle emissions, especially from diesel engines.
Research also shows fasting can improve insulin sensitivity, lower inflammation, and improve markers for heart disease including lowering levels of unhealthful LDL cholesterol.
Kozak mentioned, in which young subjects apparently ate a bunch of unhealthful foods.
'Mindless eating of unhealthful foods - not even realizing that you're grabbing a cookie off of a cookie tray at a meeting or sipping on hundreds of calories in your coffee drink or sweetened tea - is the enemy of wellness,' Palmer said.
According to a study conducted by the Insead, our indulgence in delicious but unhealthful food may not necessarily reveal a character flaw.
The term "Western diet" might conjure images of cowboys eating beans by a campfire, but it actually refers to a pattern of unhealthful dietary choices common in the U.S.
The 2018 State of the Air report finds that unhealthful levels of ozone in Oklahoma City put our citizens at risk for premature death and other serious health effects such as asthma attacks and greater difficulty breathing for those living with a lung disease like COPD, said Terri Bailey, executive director of the Lung Association in Oklahoma.