English dictionary



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English adjective: pernicious

1. pernicious exceedingly harmful


Synonymsbaneful, deadly, pestilent


Similarnoxious


Antonymsinnocuous

2. pernicious working or spreading in a hidden and usually injurious way


SamplesGlaucoma is an insidious disease.
A subtle poison.


Synonymsinsidious, subtle


Similarharmful


Antonymsharmless









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