madness

US /ˈmæd.nəs/

UK /ˈmæd.nəs/

1.

the state of being mentally ill, especially severely

:

•

The stress of the job drove him to madness.

•

There was a touch of madness in his eyes.

:

insanity lunacy dementia derangement mania

2.

extremely foolish behavior or a foolish act

:

•

It would be sheer madness to invest all your savings in that risky venture.

•

The party descended into utter madness with people dancing on tables.

:

folly absurdity silliness idiocy craziness

:

mad (as) mad as a hatter hopping mad mad cow disease (stark) raving mad