left-handed

Short definition from Wiktionary

Adjective

1. 1
   Using one's left hand in preference to, or more skillfully than, one's right.
2. 2
   Intended to be worn on, or used by, the left hand.
3. 3
   Turning or spiraling from right to left; anticlockwise.
4. 4
   Awkward or maladroit.
5. 5
   Insincere or malicious.
6. 6
   Performed with the intention of doing harm or in transgression against convention or taboo; following the left-hand path
7. 7
   Of a coordinate system: not following the right-hand rule.

Noun

1. 1
   Left-handed people, taken as a whole.