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Definition of unhealthy adjective from the Oxford Advanced Learner's Dictionary

unhealthy

adjective
 
/ʌnˈhelθi/
 
/ʌnˈhelθi/
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  1. not having good health; showing a lack of good health
    • They looked poor and unhealthy.
    • unhealthy skin
    • His eyeballs were an unhealthy yellow.
    Topics Health problemsa2
  2. harmful to your health; likely to make you ill
    • unhealthy living conditions
    • an unhealthy diet/lifestyle
    Extra Examples
    • The miners worked in very unhealthy conditions.
    • Doctors say too many teenagers adopt an unhealthy lifestyle.
    • Just taking vitamin tablets will not turn an unhealthy diet into a good one.
    • The unhealthy climate made it an unattractive place in which to settle.
    Topics Cooking and eatinga2
  3. not normal and likely to be harmful synonym unwholesome
    • He had an unhealthy interest in disease and death.
  4. opposite healthy
See unhealthy in the Oxford Advanced American DictionarySee unhealthy in the Oxford Learner's Dictionary of Academic English
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noun
 
 
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