outstanding in WordNet English dictionary

1. of major significance or importance
   "a great work of art"; "Einstein was one of the outstanding figures of the 20th centurey"
   great  outstanding 
   
2. having a quality that thrusts itself into attention
   "an outstanding fact of our time is that nations poisoned by anti semitism proved less fortunate in regard to their own freedom"; "a new theory is the most prominent feature of the book"; "salient traits"; "a spectacular rise in prices"; "a striking thing about Picadilly Circus is the statue of Eros in the center"; "a striking resemblance between parent and child"
   outstanding  prominent  salient  spectacular  striking 
   
3. distinguished from others in excellence
   "did outstanding work in human relations"; "an outstanding war record"
   outstanding 
   
4. owed as a debt
   "outstanding bills"; "the amount still owed"; "undischarged debts"
   outstanding  owing  undischarged