discoloured發音dis- 不、相反+coloured 有顏色的→失去原有顏色的展開收合dis-字首不、相反coloured單字有顏色的字面：失去原有顏色的顏色不再是原來的樣子，即變色、褪色。形容詞1變色的、褪色的、泛黃的英式拼法，美式作 discoloredThe old book had discoloured pages and a cracked spine.那本舊書的書頁泛黃，書背也裂開了。2變黑的、瘀青的指皮膚、牙齒Her ankle was swollen and badly discoloured after the fall.她摔倒後腳踝腫起來，而且瘀得很嚴重。動詞1變色、褪色discolour 的過去式與過去分詞The white tiles discoloured after years of heavy use.這些白色磁磚用了多年後就變色了。2使變色、使染色、弄髒及物Strong coffee has discoloured the inside of the mug.濃咖啡把馬克杯內側染色了。