Unfunny and Unoriginal

Unfunny adjective - Not funny; especially failing to achieve the intended humor.

Unoriginal and unfunny are semantically related. In some cases you can use "Unoriginal" instead an adjective "Unfunny".

Unoriginal adjective - Using or marked by the use of something else as a basis or model.

Unfunny and unoriginal are semantically related. Sometimes you can use "Unfunny" instead an adjective "Unoriginal".