Definitions
1.verbTo toss or lob with an underhand movement.
2.verbTo trick, deceive or gull.
3.verbTo excavate downward in successive steps or horizontal slices while positioned above on unbroken ore.
4.nounDevious people, collectively.
5.adjectiveDone by moving the hand (and arm) from below.
6.adjectiveSly, dishonest, corrupt, cheating."His underhanded trick backfired and he was disqualified."
7.adjectiveInsincere; sarcastic."An underhanded compliment is actually criticism."
8.adjectiveSecret; surreptitious.
9.adjectiveUnderstaffed.
10.adverbIn an underhanded manner.