までもない / までもなく

The grammar pattern までもない (and its adverbial form までもなく) expresses that something is not necessary or doesn't even need to be done. It conveys the nuance that the action described by the verb is excessive or unnecessary because the matter is obvious, simple, or already resolved.

までもない – Sentence-ending / Noun-modifying

When までもない ends a sentence or modifies a noun, it means "there is no need to ~" or "it goes without saying."

This pattern is formed by attaching までもない to the dictionary form of a verb. The implication is that performing the action would be overkill – the situation doesn't require that level of effort.

までもなく – Adverbial usage

The form までもなく functions adverbially, connecting to a following clause. It means "without even needing to ~" and indicates that even without performing the stated action, the result or conclusion is already clear.

Common collocations

This pattern frequently appears with verbs like ゆう言う (to say), きく聞く (to ask), かんがえる考える (to think), しらべる調べる (to investigate), and せつめい説明する (to explain). The most well-known fixed expression is いうまでもない言うまでもない / いうまでもなく言うまでもなく, meaning "it goes without saying" or "needless to say."

Difference from ～なくてもいい

While ～なくてもいい simply states that something is "not required" (permission not to do it), までもない carries a stronger nuance: the action is so unnecessary that it would be pointless or excessive to even consider doing it.