大だい同どう小しょう異い

na-adjective, noun which may take the genitive case particle 'no', noun

essentially the same; much of a muchness

Used when things are nearly identical, with only trivial differences. Often appears in the phrase 大同小異だ or as a な-adjective.

• どの候こう補ほ者しゃの政せい策さくも大だい同どう小しょう異いで、選えらぶのに困こまる。

  The policies of all the candidates are much the same, so it's hard to choose.

• 彼かれの説せつ明めいは前ぜん回かいと大だい同どう小しょう異いだった。

  His explanation was essentially the same as last time.