madness — OET

madness

noun

1 today madness is called mental illness:

insanity, insaneness, dementia, mental illness, derangement, dementedness, instability, unsoundness of mind, lunacy, distraction, depression, mania, hysteria, frenzy, psychosis, psychopathy, schizophrenia, hydrophobia;

informal craziness;

North American, informal meshugaas;

Australian, New Zealand, informal dingbats;

rare moon-madness, cynanthropy, deliration, lycanthropy, zoanthropy.

▷antonyms sanity.

2 it would be madness to do otherwise:

folly, foolishness, stupidity, insanity, lunacy, midsummer madness, foolhardiness, idiocy, imprudence, irrationality, unreasonableness, illogicality, senselessness, nonsense, nonsensicalness, absurdness, absurdity, silliness, inanity, ludicrousness, wildness, preposterousness;

informal craziness;

British, informal daftness.

▷antonyms common sense, good sense.

3 it's absolute madness in here:

bedlam, mayhem, chaos, pandemonium, babel, uproar, turmoil, wild disarray, disorder, hurly-burly;

scene of confusion, madhouse, tumult, jumble, pell-mell, hullabaloo, hubbub, whirlwind, maelstrom, all hell broken loose;

North American, informal three-ring circus.

madness Oxford Dictionary of English