I learned the term flimsy for a quilt top here on QB, and because it seems so very appropriate to me, I adopted it right away. That automatically indicates that it is just the pieced top and no layers or anything done past the piecing of the top. If it is pinned and layered, for example, it is no longer a flimsy.
So anyway, just MHO, but I like the term flimsy and find it says what I mean to say.