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deplore
shan
acrobatic feat
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concent
mandevilla laxa
unapologetic
requirement
concentrated
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hearty
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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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