Cockamamy and Witless

Cockamamy adjective - So foolish or pointless as to be worthy of scornful laughter.

Witless and cockamamy are semantically related in foolish topic. In some cases you can use "Witless" instead an adjective "Cockamamy", when it comes to topics like nonsensical.

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

Cockamamy and witless are semantically related in foolish topic. You can use "Cockamamy" instead an adjective "Witless".