Unadvised, 1) not directed by certain knowledge, ignorantly done: “friend to friend gives u. wounds,” Lucr. 1488 (not seeing whom he strikes).* “I have u. delivered you a paper that I should not,” Gent. IV, 4, 127 (without previously looking at it).
2) inconsiderate, rash, imprudent: “stay for an answer to your embassy, lest u. you stain your swords with blood,” John II, 45. “thou u. scold,” John II, 45 “this harnessed mask and u. revel,” V, 2, 132. “although our mother u. gave you a dancing-rapier,” Tit. II, 1, 38. “it is too rash, too u., too sudden,” Rom. II, 2, 118.