- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
maid
-
adam's needle
-
physician
-
actinomycetaceae
-
ad lib
-
befitting
-
ad val
-
cain
-
hegemony
-
ada
- Hide translation
insidiously
insidiously /ɪnˈsɪdiəsli/
adverb
-
(
)
In a harmfully insidious manner
(
perniciously
, insidiously
)
in a harmfully insidious manner
These drugs act insidiously
these drugs act insidiously