[いうまでもない(P);ゆうまでもない, iumademonai (P); yuumademonai](exp) it goes without saying; there is no need to say so, but of course; it is needless to say; it need scarcely be said; (P)[Add to Longdo]
[いわずもがなのこと, iwazumogananokoto](exp, n) (1) something that goes without saying; something that needn't be said; (2) something that should rather be left unsaid[Add to Longdo]
[いわでものこと, iwademonokoto](exp, n) (1) something that goes without saying; something that needn't be said; (2) something that should rather be left unsaid[Add to Longdo]