The deck was tilting slowly.

The deck was tilting now at an angle of nearly thirty degrees, forcing him to grab a stanchion to support himself.

The deck was tilting underfoot, gently.

The deck was tilting to an impossible angle.

The deck was tilting at an angle of thirty degrees.

The ship responded, the deck vibrating and tilting as the rudder and gas-turbine engines brought her one hundred and eighty degrees around to the south.

The deck had been tilting a bit and I took a look at the compass.

The deck was tilting; stabilizers were failing.

The deck was tilting under the grip of tentacles questing for prey that might have been missed thus far.