Kilter and off-kilter mean the same thing. I checked. I thought perhaps it was one of those "whelmed" things - like the movie says, '"I know you can be overwhelmed, or underwhelmed - but can you be just "whelmed?"'
akimbo is also a good word, though I always think of its secondary meaning before its primary (hands on hips, elbows out). it brings to mind weird modern flat style paintings, or ugly "art" sculptures in museums.
