• Harmful to living things; injurious to health.
  • Harmful to the mind or morals; corrupting.
  • Hurtful; harmful; baneful; pernicious: as, <em>noxious</em> vapors; <em>noxious</em> animals.
  • Guilty; criminal.
  • <strong>Synonyms</strong> <em>Noxious, Pernicious, Noisome</em>, pestiferous, pestilent, poisonous, mischievous, corrupting. That which is <em>noxious</em> is actively and energetically harmful. That which is <em>pernicious</em> is as actively destructive. <em>Noisome</em> and <em>noxious</em> were once essentially the same (see Job xxxi. 40, margin; Ps. xci. 3; Ezek. xiv. 21), but <em>noisome</em> now snggests primarily foulness of odor, with a secondary <em>noxiousness</em> to health. Unwholesome vapors that do not offend the sense of smell would now hardly be called <internalXref urlencoded="noisome">noisome</internalXref>.
  • Hurtful; harmful; baneful; pernicious; injurious; destructive; unwholesome; insalubrious; ; pernicious; corrupting to morals.
  • Guilty; criminal.
  • <xref>Harmful</xref>; <xref>injurious</xref>.
  • injurious to physical or mental health
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