- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
manduca quinquemaculata
-
conductivity
-
acanthisitta chloris
-
respecting
-
watery
-
manannan mac lir
-
a.d.
-
temple
-
nobel
-
acid-wash
- 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