Deleterious

Adjective

 * 1) Harmful or noxious to physical, mental, or moral health.
 * a deleterious chemical
 * 1) * 1850, Nathaniel Hawthorne, The Scarlet Letter - Chapter XV:
 * Or might it suffice him, that every wholesome growth should be converted into something deleterious and malignant at his touch?

Adverbs for Deleterious
malignly; abominably; painfully; grievously; oppressively; noxiously; perniciously; dreadfully; horribly; exceptionably lamentably; woefully; extremely; incredibly.

Synonyms for Deleterious

 * destructive, harmful, hurtful, injurious, noxious, pernicious
 * deadly, lethal, damaging, poisonous, destructive.

Antonyms for Deleterious
helpful, advantageous, beneficial, healthful, salutary.

Derived terms

 * deleteriously

Related terms

 * delete
 * deletion
 * deletory

Thesaurus
baleful, baneful, corroding, corrosive, corrupting, corruptive, counterproductive, damaging, deadly, destroying, destructive, detrimental, disadvantageous, disserviceable, distressing, harmful, hurtful, injurious, lethal, malefic, malevolent, malign, malignant, mischievous, noisome, noxious, ominous, pernicious, poisonous, prejudicial, ruining, ruinous, scatheful, toxic, unadvantageous, unfavorable, unprofitable, unrewarding, useless, venenate, veneniferous, venenous, venomous, vicious, virulent, worthless

Etymology
From δηλητήριος: < δηλητήρ: < δηλέομαι:.

Translations

 * Bulgarian:
 * Catalan: deleteri
 * French: délétère


 * Italian: deleterio
 * Scottish Gaelic:
 * Swedish: menlig