单词：vacillant 

形容词

• 
  [1.a.vacillant] (同义词:[vacillant( 游移的, 摇摆不定的  犹豫不决的 )]  [vacillating( adj. 犹豫的, 优柔寡断的 )]  [wavering(摇摆的  摇幌的 )]  )
• 
  注释列句：uncertain in purpose or action
• 近义词 -> [irresolute( adj. 犹豫不决的 )] 
  派生词 -> [vacillate( v. 犹豫不定 )]