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\\\"
造句
用作形容詞(adj.)
A madcap four minutes shortly after the interval seemingly ended the game as a contest. 下半場(chǎng)開(kāi)始瘋狂的4分鐘看起來(lái)要讓比賽進(jìn)入垃圾時(shí)間了。
用作名詞(n.)
That last is Berowne, the merry madcap. 最后的一個(gè)就是俾隆，他是個(gè)快活魯莽的人。
常用短語(yǔ)
On the boards she was the merriest, gayest, madcap in the world.