英和和英

without doubt

without doubt―no doubt―doubtless―undoubtedly

without a doubt

without question and beyond doubt

beyond reasonable doubt

not established beyond doubt

clear one's mind of doubts

without question

beyond any doubt

a point of doubt

established beyond doubt

not without some doubt

beyond all doubt

beyond all doubt

have doubts about

to entertain doubts―harbour doubts―suggest a doubt

not certain; doubtful

a doubt

being certain without mistake

in no uncertain terms

There is not a shadow of doubt―not the shadow of a doubt―not the faintest shadow of a doubt.

I harbour doubts

without consideration

Doubts beget doubts.

without scruples

doubt

still in doubt

without imagination

without thought

not open to doubt