What is English word MAD?

Definitions of MAD

1. Insane; crazy, mentally deranged.
2. Wildly confused or excited.
3. Extremely foolish or unwise; irrational; imprudent.
4. (chiefly, US; informal in UK) Angry, annoyed.
5. (negative polarity, informal) Used litotically to indicate satisfaction or approval.
6. (UK, informal) Bizarre; incredible.
7. (colloquial, usually with for or about) Extremely enthusiastic about; crazy about; infatuated with; overcome with desire for.
8. (of animals) Abnormally ferocious or furious; or, rabid, affected with rabies.
9. (slang, cheiflyNew England, New York, AAVE) Intensifier, signifying abundance or high quality of a thing; very, much or many.
10. (of a compass needle) Having impaired polarity.
11. (slang, cheiflyNew England, New York, AAVE and UK, dialectal) Intensifier; to a large degree; extremely; exceedingly; very; unbelievably.
12. (obsolete, intransitive) To be or become mad. [14th]
13. (nowcolloquialUS, Jamaica) To madden, to anger, to frustrate. [from 15th c.]
14. Initialism of mutual assured destruction or Initialism of mutually assured destruction.
15. Initialism of magnetic anomaly detector.
16. (genetics) Initialism of mothers against decapentaplegic.
17. (astrophysics) Acronym of magnetically-arrested disc (a type of black hole accretion disc).
18. (programming) Acronym of Michigan algorithm decoder, a programming language, a variant of ALGOL, developed in 1959 at the University of Michigan.
19. (genetics) Acronym of mothers against decapentaplegic.