madness

Used to emphasize the scale and completeness of the foolishness.

Emphasizes that every aspect of something is irrational.

Used to emphasize the total irrationality of a situation.

Used to strongly emphasize the complete lack of sense in an action or idea.

A strong way to say that something is completely and totally irrational.

Indicates that something is nothing but madness, with no sensible element.

Refers to the NCAA men's and women's college basketball tournaments held in March in the US.

Refers to irrational behavior exhibited by a large group of people.

Describing behavior or a situation that seems crazy or irrational on the surface.

Describes a brief period when someone acts in a foolish, irrational, or uncharacteristic way.

A common idiom suggesting that a particular behavior is an early indicator of insanity, often used humorously.