ninety-ninth /ˌnaɪnti ˈnaɪnθ/adjective 1noun 1forms 1 adjective1 •The ordinal form of the number ninety-nine, describing a person or thing in position number 99 of a sequence.The answer appears on the ninety-ninth page of the book.She finished ninety-ninth in the race. noun1 •One of ninety-nine equal parts of a whole.A ninety-ninth of 1980 is 20. formsninety-ninths
