PERNICIOUSNESS

Pronunciation (US): (GB):

Meaning:

Grave harmfulness or deadliness

Synonyms:

perniciousness; toxicity

Classified under:

Nouns denoting attributes of people and objects

Hypernyms ("perniciousness" is a kind of...):

morbidity; morbidness; unwholesomeness (the quality of being unhealthful and generally bad for you)

Derivation:

pernicious (working or spreading in a hidden and usually injurious way)

pernicious (exceedingly harmful)