GNU Collaborative International Dictionary of English

Found 2 definitions 

  1.       

    Utmost , a. [OE. utmeste, utemest, AS. temest, a superlative fr. te out. . See Out, and cf. Aftermost, Outmost, Uttermost.]
    1913 Webster
    1. Situated at the farthest point or extremity; farthest out; most distant; extreme; as, the utmost limits of the land; the utmost extent of human knowledge.
      Spenser.

      1913 Webster
      We coasted within two leagues of Antibes, which is the utmost town in France.
      Evelyn.

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      Betwixt two thieves I spend my utmost breath.
      Herbert.

      1913 Webster
    2. Being in the greatest or highest degree, quantity, number, or the like; greatest; as, the utmost assiduity; the utmost harmony; the utmost misery or happiness.
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      He shall answer . . . to his utmost peril.
      Shak.

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      Six or seven thousand is their utmost power.
      Shak.

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  2.       

    Utmost, n. The most that can be; the farthest limit; the greatest power, degree, or effort; as, he has done his utmost; try your utmost.
    1913 Webster
    We have tried the utmost of our friends.
    Shak.

    1913 Webster