意い味みをなさない

expression

not making sense; meaningless

Used when a statement, action, or situation lacks logical coherence or purpose.

• 彼かれの説せつ明めいはまったく意い味みをなさない。

  His explanation doesn't make any sense at all.

• この文ぶんは文ぶん法ぽう的てきに正ただしくないので意い味みをなさない。

  This sentence is grammatically incorrect, so it's meaningless.