This is a discontinued color, and it's hard to find a dupe. Imaginary mauve - or 'mauve fictif' is a sheer iridescent pink that can look lilac or whitish in different light. It's so very pretty.
It's pretty sheer, and almost has a gloss-like texture. It's a nice change from a regular nude color.
I don't like Dior addict lipsticks much because I find them to be drying. And they also wear off really quick. Not really worth the money.