Hi, Recently Lost my 20 year old Juniper Bonsai tree to less watering.
i was wondering if there is any chance of it to grow back from it's remains if i were to repot and keep watering it ? - even if there is the slightest chance.

no

No, it's dead.
I doubt very much it was 20 years old.

Okay so the man i bought it from claims, it died cause i waterted it less..
Any possible way to confirm that ?

djak2018 wrote: Okay so the man i bought it from claims, it died cause i waterted it less..

You kept it indoors?

I can confirm it is ded, and will not revive. What caused its dimise is impossible to tell from these pictures.