Definition of deleterious in English:

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deleterious

Pronunciation: /ˌdeləˈtirēəs/

adjective

Causing harm or damage: divorce is assumed to have deleterious effects on children
More example sentences
  • The world situation has had deleterious effects on a couple of international film festivals this week.
  • And finally, it examines the deleterious effect that this might have on the performer and the people around them.
  • I think, to that degree, it may have had a deleterious effect upon the medium since then.
Synonyms
harmful, damaging, detrimental, injurious;
adverse, disadvantageous, unfavorable, unfortunate, undesirable, bad

Derivatives

deleteriously

adverb
Example sentences
  • Other Faiths have other tenets, and should be allowed to practice their religion as they see fit, always providing that practice does not deleteriously affect others.
  • That is, as long as adventure travel doesn't deleteriously affect the sacred traditions of the region.
  • If you inherit a disease from your grandmother and it is a disease that manifests itself in the third generation, you yourself will be deleteriously affected.

Origin

Mid 17th century: via medieval Latin from Greek dēlētērios 'noxious' + -ous.

Words that rhyme with deleterious

cinereous, imperious, mysterious, Nereus, serious, Tiberius
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