单词：efficaciously 

副词

• 
  [1.r.efficaciously] (同义词:[efficaciously(adv.有效地, 灵验地 )]  [effectively( adv. 有效地, 有力地 )]  )
• 
  注释列句：in an effective manner; "these are real problems that can be dealt with most effectively by rational discussion"
• 反义词 -> [inefficaciously] 
  属于名词 -> [efficacious( adj. 有效的, 灵验的 )]