punish without prior warning
... 不合时宜be incompatible with present needs 不教而诛punish without prior warning 不拘一格not stick to one pattern ...
不教而诛,汉语成语,拼音是bù jiào ér zhū,意思是指事先不教育人,一犯错误就加以惩罚。出自《荀子·富国》。