insanely
adv/ɪnˈseɪnli/
Etymology From insane + -ly.
1
In an insane manner; not sanely.
- Gloating silently, she laved handfuls of hot sand over her, her mind alternating sanely and insanely.1907, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Human Toll (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 296:
2
To a great degree; very much.
- That ramp is insanely difficult to jump.
- Disney has some insanely fun roller coasters.
1 more example
- The way you made this look like the trans flag is actually insanely clever got^([sic]) damn2022 June 29, DXL44_, “Comment on 'Get in we're going to the trans lake (SCP-6113)'”, in r/SCP, Reddit, archived from the original on 03 Jan 2023: