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adverse

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adjective American English pronunciation: adverse /ædˈvɜrs/
  1. negative, unpleasant, or harmful

    an adverse reaction from the public

    adverse consequences

    have an adverse effect on:

    The drug has so far had no adverse effect on patients.

derived word

adversely

 American English pronunciation: adversely  adverb

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endies

Employed but with No Disposable Income or Savings: people who are in work but only earn just enough to live on

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