怛然失色
    Pinyin: dá rán shī sè

    Usage: 偏正式;作状语;指害怕而失色

    Explanation: 怛:畏惧,恐惧。指因害怕而变脸色。

    Source: 宋·苏洵《送石昌舍人北使行》:“闻千马骑驰过,剑槊相摩,终夜有声,从者怛然失色。”

  • Thesaurus:  Stare, and they view, be terribly alarmed; turn pale with fright