甲乙つけがたい

こうおつつけがたい

甲乙付けがたい甲乙付け難い

[kouotsutsukegatai]

Definitions

1.expressions (phrases, clauses, etc.); adjective (keiyoushi)

difficult to say which of the two is better; hard to tell which is better; (there is) little to choose between them