A madcap plan or scheme is very foolish and not likely to succeed.
例句
The politicians simply flitted from one madcap scheme to another...政客們只是蜻蜓點水般輾轉于一個又一個荒唐的計劃之間。His fast-paced novels are full of bizarre situations and madcap antics.他那些快節(jié)奏的小說里充滿了怪誕的場景和荒唐的行為。
英英詞典釋義
Noun
1. a reckless impetuous irresponsible person
Adjective
1. characterized by undue haste and lack of thought or deliberation;
"a hotheaded decision""liable to such impulsive acts as hugging strangers""an impetuous display of spending and gambling""madcap escapades"; (`brainish' is archaic)