英和和英

to be unable to speak

I can't tell.

Can't say anything

I am not certain [sure].

I don't have a say.

（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 could not speak

a word or words the utterance of which is forbidden

to cease to speak

I have nothing left to say except 〜.

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

Save your breath.

I cannot say what I want to say.

the state of being impossible to fully express in words

It is not always so

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

There is no saying what may happen.

I need scarcely say.

The statement is too sweeping.

“A guilty conscience needs no accuser.”【イディオム・格言的】

I cannot say.

The statement is too sweeping.

to say nay―deny―refuse

I'm not saying anything.

I can't say for sure.

I can't say anything.

“A guilty conscience needs no accuser.”【イディオム・格言的】

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

He does not make many words about the matter