1 year ago
Last edited at 11:04AM on 6/6/2012
'Fattest' is an adjective which indicates a specific one of something. I.e. the specific pig which is more fat than any of the others. The article 'the' is also specific; whereas the article 'a' is non-specific. The article should match the adjective in its specificity. For example, "that is the fattest pig I have ever seen." indicates that this specific pig is fatter than absolutely any other that "I" have observed. "This is a fatter pig than that one, or those over there" leaves room to indicate that there is a pig somewhere which is fatter still. I can; however, think of one possible case where "That is a fattest pig" would be correct. If there had been several different "fattest pig" contests, and each winner was designated with the title "fattest pig" for that contest; when referring to the group of winners on an individual basis, each of them would, in fact, be "a fattest pig" (of their contest).