Sideways
Part of speech: adverb
Definition: With a side to the front. Towards one side. Askance; sidelong.
Example sentence: Switzerland is a small, steep country, much more up and down than sideways, and is all stuck over with large brown hotels built on the cuckoo clock style of architecture.
Crabwise
Part of speech: adjective
Definition: In the manner of a crab; sideways.
Part of speech: adverb
Definition: In the manner of a crab; sideways.