Synonyms of the word

underhandedly

• adv. In an underhanded manner.

underhand

• adj. secret; clandestine.
• adj. (by extension) dishonest and sneaky; done in a secret or sly manner.
• adj. (in various ball games, of a ball) thrown (etc.) with the hand brought forward and up from below.
• adv. with an underhand movement.
• adv. in a sly, sneaky or secret manner.
• v. To toss or lob with an underhand movement.
• v. To trick, deceive or gull.
• v. (mining) To excavate downward in successive steps or horizontal slices while positioned above on unbroken…
• n. (textiles) The lower of two hands, the hand under the work.