(of a person or an object 人或物体 big and heavy 大而重的 - (informal)
(of an amount of money 钱的数额 large; larger than usual or expected 很大的；超出一般的；可观的 They sold it easily and made a hefty profit. 他们毫不费力地卖掉了它，得到了一笔可观的利润。 Interest rates have gone up to a hefty 12%. 利率大幅上涨了 12%。 She will have to pay a pretty hefty fine if she is caught. 如果她被抓住，她将不得不支付相当高的罚款。
using a lot of force 用力的；猛烈的
Word Originmid 19th cent.: from heft ‘lift or carry (something heavy)’ + -y.