Same thing: falling.

The opposite of falling is accelerating, and you feel acceleration. A rocket rocketing in an empty universe would feel the same as a rocket rocketing in orbit would feel the same as a rocket just sitting around on Earth. Wait, that last one's different...

We happen to live most of lives in a somewhat exceptional case of constant acceleration (with respect to falling). The ground below our feet has gotten us pretty used to acceleration. But, if you jump, you'll feel like falling too!

If you spent your entire life in an area with gravity prior to that moment, you would feel like you are falling even though you are NOT.

Our brain is used to gravity. That is why weightlessness feels weird.

But falling and weightlessness are indistinguishable to your brain. They are exactly the same thing.

So, if all the gravity around you suddenly disappeared, your brain would initially tell you that you are falling.

Only after some time would you convince yourself that, "No, I'm not falling... Gravity just disappeared. I'm just weightless."

If there is no gravitational field, you don't need a fall to cancel it out.

lonely?

:(