Ill-formed and Unmade

Ill-formed adjective - Not grammatical; not conforming to the rules of grammar or accepted usage.

Unmade and ill-formed are semantically related. in shapely topic. In some cases you can use "Unmade" instead an adjective phrase "Ill-formed", when it comes to topics like formless, shapeless.

Unmade adjective - (of a bed) not having the sheets and blankets set in order.

Ill-formed and unmade are semantically related. Sometimes you can use "Ill-formed" instead an adjective "Unmade".