If it is that off, and there are no feet to adjust, you may have one heck of a dip in your floor...

Anthony

I appreciate the response, but that doesn't really address my inquiry. I am concerned if the amount of tilt will be damaging to the fridge functioning.

Shouldn't damage the unit function. Just eyesight. ;)

Haha okay cool. I can handle that for the time being

Off-level that much can affect defrost condensate from draining properly out of the tray under the evaporator in the freezer. The drain outlet is in the center, water will pool toward the left side. Suggest you place a pieces of lumber or some such under the left side accordingly.

Reasonable suggestion

Adding to add to what dadoes said, a scrap piece of 2x4 should take care of the problem assuming that the the left side of fridge is 1½ inches low as indicated in your photo. Despite its name, a 2x4 is actually 1½ inches thick. A small scrap piece may well be free, too.

If it is more like an inch, as you indicated at the start, the quick fix may be a package of inexpensive tapered shims. Here's an example from Lowe's, but pretty much any hardware store will have packs of them for $2 or so.

But I am curious whether it is the floor or the fridge that is out of level? If it is the fridge (say, maybe the fridge is missing the left side caster and height screw), the parts are readily available and not expensive. Worth doing the repair eventually. Will make it much easier to get the fridge in and out for cleaning or dealing with the inevitable kitchen spills that flow across the kitchen floor to go beneath the fridge. A basic law of the universe seems to be that you will need to move the fridge around only if it is difficult to do so. :>)