obliquely in WordNet English dictionary

1. at an oblique angle
   "the sun shone aslant into his face"
   obliquely  aslant  athwart  obliquely  aslant  athwart 
   
2. to, toward or at one side
   "darting eyes looking sidelong out of a wizened face"
   sidelong  sideways  obliquely  sidelong  sideways  obliquely