a. Situated on the left; nearer the left hand than the right; as, the left-hand side; the left-hand road. [ 1913 Webster ]

Left-hand rope, rope laid up and twisted over from right to left, or against the sun; -- called also water-laid rope. [ 1913 Webster ]

a. 1. Having the left hand or arm stronger and more dexterous than the right; using the left hand and arm with more dexterity than the right. [ 1913 Webster ]

2. Clumsy; awkward; unlucky; insincere; sinister; malicious; as, a left-handed compliment. [ 1913 Webster ]

The commendations of this people are not always left-handed and detractive. Landor. [ 1913 Webster ]

3. Having a direction contrary to that of the hands of a watch when seen in front; -- said of a twist, a rotary motion, etc., looked at from a given direction. [ 1913 Webster ]

Left-handed marriage, a morganatic marriage. See Morganatic. --
Left-handed screw, a screw constructed to advance away from the observer, when turned, as in a nut, with a left-handed rotation. An ordinary wood screw is right-handed. [ 1913 Webster ]

n. a person who uses the left hand with greater skill than the right; a left-handed{ 1 } person.
Syn. -- lefty, southpaw. [ WordNet 1.5 ]

{ } n. The state or quality of being left-handed; awkwardness. [ 1913 Webster ]

An awkward address, ungraceful attitudes and actions, and a certain left-handiness (if I may use the expression) proclaim low education. Chesterfield. [ 1913 Webster ]