Hi Jessica,
Note that the Entire home usually includes a bedroom, a bathroom, a kitchen, and a separate, dedicated entrance. Hosts should note in the description if they'll be on the property or not (ex: "Host occupies first floor of the home"), and provide further details on the listing.
If the Host did not disclose it, I recommend contacting Airbnb to help you with the cancellation due to inaccuracy.
You may also use this reference for Entire home:
https://www.airbnb.com/help/article/5
https://www.airbnb.com/help/article/317
I hope this helps.
All the best,
Upfish Management