Another word for viable

It is a completely viable state, with a ski museum and a McDonald's.

The 2000s saw the rise of commercially viable seeds created by transgenesis, that is, the insertion of DNA from one species into another species.

I am saying that for small nations to be economically and politically viable is good news for peace.

Up until now, there has been no viable alternative.

We have recently been experimenting with heat meters, to see whether the possibility of charging via their readings is viable.