perniciously

listen to the pronunciation of perniciously
English - English
insidiously: in a harmfully insidious manner; "these drugs act insidiously"
In a pernicious manner
banefully: in a noxiously baneful way; "this banefully poisoned climate"
{s} destructively, harmfully; malignantly; evilly, wickedly
pernicious
tending to kill or hurt
pernicious
If you describe something as pernicious, you mean that it is very harmful. I did what I could, but her mother's influence was pernicious. very harmful or evil, often in a way that you do not notice easily (pernicieux, from perniciosus, from pernicies , from nex )
pernicious
Causing death or injury; deadly
pernicious
{a} destructive, mischievous, swift
pernicious
{s} malignant; damaging, harmful, injurious; destructive; deadly, fatal
pernicious
exceedingly harmful
pernicious
Having the quality of injuring or killing; destructive; very mischievous; baleful; malicious; wicked
pernicious
Causing much harm in a subtle way
pernicious
working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison"
pernicious
Quick; swift (to burn)
perniciously
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