Blind  —adj. 1 lacking the power of sight. 2 a without adequate foresight, discernment, or information (blind effort). B (often foll. By to) unwilling or unable to appreciate a factor etc. (blind to argument). 3 not governed by purpose or reason (blind forces). 4 reckless (blind hitting). 5 a concealed (blind ditch). B closed at one end. 6 (of flying) using instruments only. 7 cookery (of a flan case etc.) Baked without a filling. —v. 1 deprive of sight. 2 rob of judgement; deceive; overawe. 3 slang go recklessly. —n. 1 screen for a window; awning. 2 thing used to hide the truth. 3 obstruction to sight or light. —adv. Blindly.  blindly adv. Blindness n. [old english]