crackbrained

• 过时的形容词，形容想法或计划极其愚蠢、荒谬或疯狂。

An old-fashioned adjective describing an idea or plan that is extremely foolish, senseless, or insane.

1. Foolish or senselessC1informal

   Extremely foolish, impractical, or lacking sound judgment.

   愚蠢的

   • His crackbrained scheme to build a rocket in his backyard was doomed from the start.
   • She dismissed his crackbrained idea as a waste of time.
   • Only a crackbrained person would attempt such a dangerous stunt.

   同义词absurdcrackpotfoolishharebrainedidioticlunaticmadcapnonsensicalpreposteroussenseless

   反义词clearheadedjudiciousprudentrationalreasonablesanesensiblesoundwise

2. Irresponsible or recklessC1informal

   Characterized by a lack of responsibility or caution, often leading to dangerous outcomes.

   鲁莽的

   • The crackbrained decision to ignore safety protocols caused a major accident.
   • His crackbrained behavior at the party worried everyone.
   • It was a crackbrained move to invest all his savings in that risky venture.

   同义词carelessfoolhardyharebrainedheedlessimprudentirresponsiblemadcaprashrecklessthoughtless

   反义词carefulcautiousprudentresponsiblesensible