Definition of "utmost" in English

adjective

1. superlative form of utter: most utter; situated at the most distant limit; farthest, outermost.

   • the utmost limits of the land
   • the utmost extent of human knowledge

adjective

1. The most extreme; greatest, ultimate.

   • the utmost assiduity
   • the utmost harmony
   • the utmost misery or happiness

noun

1. The greatest possible capability, extent, or quantity; maximum.

   • at the utmost    to the utmost