Half-witted and Imbecilic

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

Imbecilic and half-witted are semantically related in character trait topic. In some cases you can use "Imbecilic" instead an adjective phrase "Half-witted".

Imbecilic adjective - Having a mental age of three to seven years.

Half-witted and imbecilic are semantically related in character trait topic. You can use "Half-witted" instead an adjective "Imbecilic", if it concerns topics such as foolish.