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Entry 2 senses · 2 variants Webster, 1913

Ultra

· Ul·tra · IPA /ˈʌltɹə/
01 a. Going beyond others, or beyond due limit; extreme; fanatical; uncompromising; as, an ultra reformer; ultra measures.
  1. 1.
    Going beyond others, or beyond due limit; extreme; fanatical; uncompromising; as, an ultra reformer; ultra measures.
02 n. One who advocates extreme measures; an ultraist; an extremist; a radical.
  1. 1.
    One who advocates extreme measures; an ultraist; an extremist; a radical.