As the name implies, this is the inverse of Weak, but Skilled.
A character who is Unskilled, but Strong lacks the refined technique of formal training, but compensates in various ways through raw power. They may eat anti-tank missiles the way a glutton goes through an all-you-can-eat buffet. They may be so strong they kick tanks around like footballs or have the firepower to crush the US, China [...] [tvtropes.org]