WordWeb Online

1. Causing destruction or much damage
   "a policy that is destructive to the economy"; "destructive criticism"

1. That does not result in destruction or damage to the material under investigation
   "They explored the importance of non-destructive testing"

See also: annihilating, annihilative, apocalyptic, blasting, cataclysmal, cataclysmic, caustic, corrosive, crushing, damaging, devastating, erosive, harmful, iconoclastic, mordant, negative, ravaging, ruinous, soul-destroying, vitriolic, wasteful

Antonym: constructive

Encyclopedia: Destructive