ではなかろうかMeanings1expressionis it not so?; isn't it?usually written using kana aloneA formal, somewhat literary rhetorical question used to express a conjecture or to seek agreement. Equivalent to ではないだろうか.この計けい画かくには問もん題だいがあるのではなかろうか。Isn't there a problem with this plan?彼かれの言いうことも一いち理りあるのではなかろうか。Isn't there some truth in what he says?