I want to say:
They are very likely to be different.
But I find it a bit wordy, so I was wondering is there a single word that can be used like:
They are _______ different.
I know maybe I can use basically here, but that seems to change the original meaning a bit to me, is that right?
Is there a word that is stronger than "probably" in terms of probability?
The context could be imagined as, I have asked some people from the streets to fill a questionnaire, but I can't be 100% sure if I have asked the same person twice, though it is very unlikely to happen.
So I want to say something like "These people are very likely to be different from each other."
Sorry for the terrible explanation.