英和和英

（文頭に置けば）―There is no saying―（文尾に置けば）―for aught one knows―（独立句に用いれば）―Who knows?―God knows―（形容詞に用いれば）―unspeakable sorrow―inexpressible feeling―indescribable beauty―unutterable grief―ineffable joy―indefinable charm―exquisite pleasure

whether one will or not―willy-nilly―without more ado―peremptorily

I need scarcely say.

There is no saying what may happen.

There is no way of expressing it―It is unspeakable―unutterable.

It is beyond recall―past recall.

to be unable to speak

I am dumfounded―I am struck dumb with astonishment―astonishment deprives me of my power of speech.

I am not certain [sure].

the state of being impossible to fully express in words

He does not make many words about the matter

Can't say anything

needless to say

The kind of thing that gets called...

I don't know what excuse to make

I do not know what excuse to make.

Talk will be of no avail

Do not breathe a syllable of it to any one!

to talk wild

I need not say―It is needless to say―It goes without saying―that...

of a person, to become totally uncommunicative

He weighs every word he utters

I never said a word.

The rest needs no telling.

to cease to speak

a word or words the utterance of which is forbidden

I have left nothing unsaid―said everything.

The statement is too sweeping.

I'm often told that

after all