Underhand /(ŭn"dẽr*hănd`)/

Un·der·hand

Underhand

a.
  1. Secret; clandestine; hence, mean; unfair; fraudulent.
  2. Done, as pitching, with the hand lower than the shoulder, or, as bowling, with the hand lower than the elbow. (Baseball, Cricket, etc.)

Underhand

adv.
  1. By secret means; in a clandestine manner; hence, by fraud; unfairly; dishonorably.
    Such mean revenge, committed underhand.
    Baillie Macwheeble provided Janet, underhand, with meal for their maintenance.
  2. In an underhand manner; thrown with the hand no higher than the shoulder and the palm turned upward during part of the pitch; -- said of pitching or bowling a ball. (Baseball, Cricket, etc.)