shapeless

a mass of shapeless slag;

She wore a shapeless knitted garment.

she wore a shapeless frock and no make-up.

The black reticule sagged under the weight of shapeless objects.

When I washed the jumper, it just turned into a shapeless mass.

The window, tattooed with grape-shot, had lost glass and frame and was nothing now but a shapeless hole, tumultuously blocked with paving-stones.