hare-brained scheme

Translations
безумная схема
He came up with a hare-brained scheme to make money quickly.
Он придумал безумную схему быстро заработать деньги.
Definitions
A hare-brained scheme refers to a plan or idea that is foolish, impractical, or lacking in common sense.
Words
harebrained

adjective
безрассудный
scheme

noun
план