superficial in WordNet English dictionary

1. concerned with or comprehending only what is apparent or obvious; not deep or penetrating emotionally or intellectually
   "superficial similarities"; "a superficial mind"; "his thinking was superficial and fuzzy"; "superficial knowledge"; "the superficial report didn't give the true picture"; "only superficial differences"
   superficial 
   
2. of, affecting, or being on or near the surface
   "superficial measurements"; "the superficial area of the wall"; "a superficial wound"
   superficial 
   
3. of little substance or significance
   "a few superficial editorial changes"; "only trivial objections"
   superficial  trivial