1.  indefinite
2.  indeterminate
3.  unsteady
4.  drifting
5.  fitful

• 1. 不定: Indefinite | uncertainty | tramp | inequality
• 2. 不定式: infinitive | indeterminate form | todo | o infinitivo
• 3. 不定因（因明用语）: uncertain reason | uncertain reason; Aniscita-hetuka

更多释义

• 1.他拿不定主意是否接受额外工作。
  He was doubtful about accepting extra work.
  dict.yoduao.com
• 2.船身摇摆不定，让我觉得恶心。
  The swaying motion of the ship was making me feel seasick.
  dict.yoduao.com
• 3.你来选吧，我拿不定主意。
  You choose—I can't decide.
  dict.yoduao.com

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