Definition: very silly or stupid Level: C1
那是个愚蠢的决定。
That was an ___insane decision.
在暴风雨中把派对安排在户外真是个愚蠢的主意。
It was an ___insane idea to hold the party outdoors in a storm.
不系安全带开车简直是愚蠢。
Driving without a seatbelt is just ___insane.
