Stand-alone

I have a stand-alone personal computer.

Salmonella would not be a stand-alone anti-cancer therapy. Instead, Curtiss envisions the modified bacteria being used alongside more traditional treatments, including chemotherapy and radiation, to fight cancer.

Example sentences should be stand-alone.

They offer an inexpensive add-on for a computer, or a stand-alone system with all the functions built in.

Make sure your music software is stand-alone, too (ie, it doesn’t have to be loaded into a utility—we don’t want to have to mess around with bits of wire or umpteen different programs just to hear your maestropiece).

a stand-alone sequel

Standalone systems, also known as dedicated systems, are often thought to provide word processing cervices alone. In truth, some standalones — but not all of them — can be used for other functions as well. […] Also, some standalones can only be used for word processing; if you need other computer functions, you can't have them.

Near-synonym: one-off

This standalone will delight and draw readers of Christian romantic suspense like […]