Ịrr|sinn
m,
no pl →
madness, insanity;
das ist ja Irrsinn! (inf) →
that’s (sheer or absolute) madness or lunacy!;
auf den Irrsinn verfallen, etw zu tun →
to have the mad or crazy idea of doing sth Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007