Plain Jean

adj.: The semi-opposite of a "Plain Jane"

an extraordinary, cute but not hot, girl-next-door who is actually a fierce lioness.

she knows what she's doing without making a plan; she knows exactly what she doesn't want, which informs her of what she does want; and she has specific reasons for everything. a girl who can rise to the top, but pulls others up with her. extremely innovative and always the "idea man".

"Wow. She's not a Plain Jane... she's a Plain Jean."