A standalone bathtub is a bathtub that is not attached to a wall or built into a bathroom structure. It is a freestanding bathtub that can be placed anywhere in a room. Full definition
The bathroom features a large standalone bathtub & separate shower. (alluxia.com)
Bathe under blue skies or bright stars in the open roof bath area with standalone bathtub, rainforest shower and Bliss ® Spa bath amenities. (wmaldives.com)
The bathrooms now include features such as motorized blinds in white marble, a standalone bathtub, separate shower, and leather accessories. (frequentbusinesstraveler.com)