As a noun insanery
is (very|rare) an (soplink).
As an adverb insanely is
in an insane manner.
insanery
English
Noun
(very, rare) An (soplink). insanely
English
Adverb
(
en adverb)
In an insane manner.
To a great degree; very much.
- That ramp is insanely difficult to jump.
- Disney has some insanely fun roller coasters.