connective N1 uncommon casualwritten
〜ではあるまいし — it's not as if ~
〜ではあるまいし ・ ではあるまいし
Meaning
- it's not as if / since it isn't ~ — rejects an exaggerated premise, usually leading into a rebuke or piece of advice
Key sentence
子供ではあるまいし、それくらい自分でやりなさい。
You're not a child, so do that much yourself.
Formation
| Attaches to | Form | Example |
|---|---|---|
| Noun or plain form | N/普通形 + ではあるまいし |
When: Spoken-emphatic; the second clause is typically advice or criticism ('so [do/don't] ~').
Examples
神様ではあるまいし、未来のことなど分かるはずがない。
I'm not a god — there's no way I could know the future.
初めてではあるまいし、そんなに緊張しなくていい。
It's not as if it's your first time, so you don't need to be so nervous.
Easily confused with
じゃあるまいし じゃあるまいし is the casual contraction of ではあるまいし — identical meaning, more colloquial. わけではない わけではない calmly denies a conclusion. ではあるまいし dismisses a far-fetched premise with attitude, then leads into a rebuke or advice. まるで〜ようだ まるで〜ようだ likens something to a vivid image. ではあるまいし denies that such a thing is the case, as grounds for what follows.
See 〜ではあるまいし in real sentences
Jengo shows 〜ではあるまいし the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.
Study it in JengoSources Compiled from published Japanese grammar references.