Yey, I sponsored it! Supporters: Cubbypower,wetALEJANDRO123,SuitHawk,WetVinnie,TheRealXpert,SpxceAndTime,seeam3,EPICSNOWMAN112,bluegiratina13 "Funnest is a regular superlative of the adjective fun. However, the use of fun as an adjective is itself still often seen as informal or casual and to be avoided in formal writing, and this would apply equally to the superlative form."