Definition of "nonincumbent" [nonincumbent]

• One who is not an incumbent. (noun)

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• "It's even fair to call it a historic victory, for Mr. Romney becomes the first nonincumbent Republican candidate to win both the Iowa caucuses and the New Hampshire primary back-to-back."
• "The revised totals leave a muddle that tarnishes Iowa's reputation and deprives Mr. Romney of the distinction of being the first nonincumbent Republican to win both Iowa and New Hampshire."
• "No nonincumbent Republican had ever won Iowa and New Hampshire back to back."