(だいどうしょうい)

だいどうしょうい
noun, na-adjective, yojijukugo
essentially the same; mostly alike with minor differences
1. essentially the same; mostly alike with minor differences
Describing things that are fundamentally similar with only small, insignificant differences. Used when differences are negligible compared to the overall similarities.
どの(あん)大同小異(だいどうしょうい)だ。
All the proposals are essentially the same.
各社(かくしゃ)製品(せいひん)大同小異(だいどうしょうい)で、(おお)きな()はない。
The products from each company are mostly the same with no significant differences.
意見(いけん)大同小異(だいどうしょうい)だったので、すぐに合意(ごうい)(たっ)した。
The opinions were essentially the same, so we quickly reached an agreement.

YOJIJUKUGO BREAKDOWN:

  • (だい) - big, great
  • (どう) - same
  • (しょう) - small
  • () - different

Literally: "big same, small different" = mostly the same with small differences.

GRAMMAR:

  • 〜は大同小異(だいどうしょうい)だ - ~ are essentially the same
  • 大同小異(だいどうしょうい)の + noun - essentially similar ~
  • 大同小異(だいどうしょうい)で - being essentially the same

USAGE CONTEXT:

Often used when:

  • Comparing options that don't differ significantly
  • Dismissing minor differences as unimportant
  • Noting that alternatives are interchangeable
  • Finding common ground despite superficial differences

NUANCE:

Can be:

  • Neutral (stating a fact)
  • Slightly dismissive (differences don't matter)
  • Positive (finding agreement despite minor differences)

SIMILAR EXPRESSIONS:

  • ()たり()ったり - much the same, similar
  • 五十歩百歩(ごじっぽひゃっぽ) - six of one, half dozen of the other
  • どんぐりの背比(せいくら)べ - all much the same (humble things compared)
  • 大差(たいさ)ない - no big difference

REGISTER:
Neutral to formal. Common in business and academic discussions.