Utmost /(?)/

Ut·most

Utmost

a.
  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.
    We coasted within two leagues of Antibes, which is the utmost town in France.
    Betwixt two thieves I spend my utmost breath.
  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.
    He shall answer . . . to his utmost peril.
    Six or seven thousand is their utmost power.

Utmost

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