Synonyms and antonyms of Stupid ideas or behaviour in British Thesaurus

stupidity (noun)

stupid behaviour

madness (noun)

ideas or actions that show a lack of good judgment and careful thought

lunacy (noun)

stupid and possibly dangerous ideas or behaviour

idiocy (noun)

very stupid ideas or behaviour

insanity (noun)

informal very stupid or crazy behaviour that can cause serious problems, harm, or injury

stunt (noun)

something dangerous or stupid that you do, often to impress someone

folly (noun)

formal a way of thinking or behaving that is stupid and careless, and likely to have bad results

idiocy (noun)

a very stupid thing to say or do

a mug’s game ()

used for saying that something is stupid or dangerous and you should not get involved in it

craziness (noun)

the fact or condition of not being at all sensible or practical

(going) down the rabbit hole ()

used for referring to a situation that is strange, confusing, or illogical, and often hard to escape from

make (a) nonsense of ()

to make something seem unreasonable