a. 1. Resembling beads; small, round, and glistening. “Beady eyes.” Thackeray. [ 1913 Webster ]
2. Covered or ornamented with, or as with, beads. [ 1913 Webster ]
3. Characterized by beads; as, beady liquor. [ 1913 Webster ]
adj. 1. having eyes that gleam with malice. [ WordNet 1.5 ]