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perforce
monitory
aerator
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zip line
prepossessing
acanthocereus
genial
precipitous
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kip
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insidiously
insidiously
/ɪnˈsɪdiəsli/
adverb
(
)
In a harmfully insidious manner
(
perniciously
,
insidiously
)
in a harmfully insidious manner
These drugs act insidiously
these drugs act insidiously
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