discolour Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to remove change or spoil the color of; cause to fade; stain; to lose change or become spoiled in color; fade or stain Example Sentence Strong bleach can discolour fabric. Synonyms fading; dirtying of hue; stain Antonyms brighten; color Hear It! Say It! Write It! discolour Switch to cursive Start Share with your friends: