变色之言 is an idiom
变色之言biàn sè zhī yán
使脸色改变的话。多指为争论是非曲直而冲动发怒时说的话。
Origin 《汉书·匡衡传》：“朝有变色之言，则下有争斗之患。”
Word breakdown for “变色之言”: Open in Reader →
1.to change color2.to discolor3.to change countenance4.to become angry+1 more 之HSK 7–9top 500Among the 500 most common words 1.(possessive particle, literary equivalent of 的[de])2.him3.her4.it+1 more 言top 5kAmong the 5,000 most common words 1.words2.speech3.to say4.to talk+1 more