Dilly and Half-witted

Dilly noun - Something very good of its kind.

Half-witted and dilly are semantically related. In some cases you can use "Half-witted" instead an adjective "Dilly".

Half-witted adjective - Not having or showing an ability to absorb ideas readily.

Dilly and half-witted are semantically related. Sometimes you can use "Dilly" instead an adjective phrase "Half-witted".