Are Funner and Funnest Real Words? - Merriam-Webster Some folk find it fun to use the word fun as an adjective Others find it funner to inform this group that fun is properly a noun, not an adjective, and even if it is used in this way the comparative form of funner is an abomination And sometimes the first group finds it funnest of all to tell the anti-fun brigade to go stick it in their hats In the spirit of fun let’s have a look at both
Is funnest a word? - English Language Usage Stack Exchange Taken from Wiktionary: 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 Merriam-Webster, however, gives fun as an adjective without comment, and states that funner and funnest are ‘sometimes’ used
funest - Wiktionary, the free dictionary funest (comparative more funest, superlative most funest) (now rare) Causing death or disaster; fatal, catastrophic; deplorable, lamentable 1663 Sept 17th, John Evelyn in a letter to Dr Pierce, published 1863 in Diary and correspondence of John Evelyn, F R S , volume 3, page 142: