The phrase "unbelievable price" means that the price of something is extremely low or inexpensive, to the point where it may be hard to believe or find elsewhere.
Sentences with «unbelievable price»
Customers can shop for quality used vehicles at unbelievable prices without compromising on peace of mind. (duranttoyota.com)
I always end up finding some ridiculously cute things for unbelievable prices. (thefashionablehousewife.com)
And believe me, You'll also find great sales on already unbelievable prices. (theinstylejournal.com)