noun

madness

insanity, craziness, folly

He was driven to madness by his grief.

He was driven to madness by his grief.

It would be madness to climb the mountain in this weather.

It would be madness to climb the mountain in this weather.

There was a madness in the crowd at the concert.

There was a madness in the crowd at the concert.

((as a state)) the state of being mentally ill He was driven to madness.

((as an action)) stupid or dangerous behavior It would be madness to climb the mountain.

Synonyms: insanity, craziness, folly; Antonyms: sanity, sense

From the adjective 'mad' + the noun-forming suffix '-ness' (state or quality of).

The condition of being 'mad'. The '-ness' suffix creates a noun describing a state.

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