perniciousness 1
noundomain: property
Princeton WordNet [ver.3.1]
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EnglishDefinition
grave harmfulness or deadliness
Hypernym
the quality of being unhealthful and generally bad for you
EnglishDerivationally related form
pernicious 2
adjective
working or spreading in a hidden and usually injurious way
pernicious 1
adjective
exceedingly harmful
