Left-handed

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.

Clumsy; awkward; unlucky; insincere; sinister; malicious; as, a left-handed compliment.

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.