indefinite

indefinite
adjective
  1. lasting for an unknown or unstated length of time
    无定限的,无限期的
    they may face indefinite detention.
    他们可能要面临无限期拘留。
    ■not clearly expressed or defined; vague
    不明确的;含糊的
    their status remains indefinite.
    他们的身份还不明确。
    ■(Grammar)(of a word, inflection, or phrase) not determining the person, thing, time, etc., referred to
    (语法)(词、屈折变化或短语)不定的
派生
indefiniteness
noun
语源
  1. mid 16th cent.: from Latin indefinitus, from in- 'not' + definitus 'defined, set within limits' (see definite)
英语宝典
考试词汇表