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acerbic
scarecrow
rallentando
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plow on
fringe benefit
heel counter
epidemiology
pig-a-back
conchologist
stubborn
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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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