悔之晚矣

Pinyin: huǐ zhī wǎn yǐ Usage: 主谓式；作谓语、定语、状语；指后悔已经晚了 Explanation: 矣：了。后悔已经晚了 Source: 《大宋宣和遗事》：“万一有奸邪叵测之情，陛下悔之晚矣！” Example: 小沛原非久居之地。今徐州既有可乘之隙，失此不取，～。★明·罗贯中《三国演义》第十四回 Postscript: 酒醒不见牛肉 Thesaurus:  spare no pains, Not report labor, zealously and earnestly, work hard and not be upset by criticism; willingly bear the burden of office, bear the burden and heat of the day, Remorse, to regret a previous mistake, Huizhiwuji, Regret of less than, Afterthought Mo and, Office workers of any blame, be full of remorse