单词：out-of-date 

形容词

• 
  [1.a.out-of-date] (同义词:[outdated( adj. 过时的, 不流行的 )]  [out-of-date( adj. 老式的, 过时的, 落伍的 )]  [superannuated( adj. 退休的, 过时的 )]  )
• 
  注释列句：old; no longer valid or fashionable; "obsolete words"; "an obsolete locomotive"; "outdated equipment"; "superannuated laws"; "out-of-date ideas"
• 近义词 -> [noncurrent( 非本期的 )]