What does the French word "fade" mean?

What does the French word fade mean? In French, the word fade is an adjective and noun with different meaning than English fade. As adjective, fade means tasteless, insipid, bland, dull, colorless, or washed-out, describing food lacking flavor, color that is faded, or personality that is dull or flat. For example, un goût fade means bland taste, une couleur fade means dull color, un sourire fade means insipid smile. As noun, la fadeur? But fade as noun feminine can mean tastelessness. Also, une fade can be slang? In French, fade as noun in verlan slang is short for defonce? Actually in French slang, fade is noun from verlan for dealer? Let's note: in French, une fade historically meant share. In modern colloquial, être fade means to be bland. So French fade is about lack of flavor or interest, not about disappearing like English fade. It comes from Latin vapidus meaning flat, insipid. English fade comes from Old French fader. So French fade means bland, tasteless, dull, colorless, insipid, describing food, color, or personality lacking intensity, distinct from English fade meaning to disappear gradually, though etymologically related to idea of losing color.