fatest

Fatest is not a standard English word. In most contexts, it is a misspelling or typographical error for fattest, the superlative form of fat, or for fastest, the superlative form of fast. The term may also appear as a proper noun in branding or fiction.

Origin and usage: The stem fat adds the suffix -est to form the superlative fattest, meaning “having the most fat” among a group; standard spelling is fattest. The base adjective fast forms fastest, meaning the greatest speed. Because fat and fast are similar in sound or appearance, misspellings like fatest occur especially in informal writing or quickly typed text.

Contexts and examples: In general writing, avoid fatest and use fattest or fastest. In health or body composition discussions, fattest is grammatically correct but often imprecise; more precise language such as “the highest body fat percentage” is preferred. In brand names or fictional works, Fatest can be chosen as a stylized proper noun or product name.

See also: Fat; Fatness; Fattest; Fast; Fastest.