How to pronounce “undrinkable” in English

realizing that of course there's probably a good reason why nobody lives there um it was overrun with mosquitoes there's malarial yeah the water wasbrackish and undrinkable and it was completely overrun with this poisonous plant datura so the colonists of courseattempt to eat it they get very sick it actually contributes to the first collapse of the Jamestown calling maybe there were like two or three subsequent