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sibilant consonant
exaltation
recalcitrance
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lodgers
elbow room
accountantship
concealable
adam
spontaneous abortion
expurgate
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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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