infinite

Concise Oxford English Dictionary © 2008 Oxford University Press:
infinite /ˈɪnfɪnɪt/

▶adjective

• 1 limitless in space, extent, or size.

  ■ very great in amount or degree.

• 2 Mathematics greater than any assignable quantity or countable number.

– derivatives
infinitely adverb,
infiniteness noun,
infinitude /ɪnˈfɪnɪtjuːd/ noun.

– origin ME: from L. infinitus, from in- ‘not’ + finitus ‘finished, finite’.