1. 
2. 
[syn: scoreless, goalless, hitless]
The Collaborative International Dictionary of English v.0.48:
hitless \hitless\ adj.
   1. (Baseball) Having no hits scored; -- of a baseball game
      (or the pitching) in which a pitcher allows the opponent
      no hits; as, a hitless game.
   Syn: no-hit.
        [WordNet 1.5]
   2. Having no points scored.
   Syn: scoreless, goalless.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
hitless
    adj 1: (of a batter) without a hit; "he went hitless for three
           innings"
    2: having no points scores; "a scoreless inning" [syn:
       scoreless, goalless, hitless]