underhanded
1. [ adjective ] marked by deception
Synonyms: underhand sneaky
Examples:

"achieved success in business only by underhand methods"

Related terms: crooked
2. [ adjective ] (sports) with hand brought forward and up from below shoulder level
Synonyms: underarm underhand
Examples:

"an underhand pitch" "an underhand stroke"

Related terms: overhand sport
Similar spelling:   underhandedly
  underhand
  understand
  undermanned
  underline
  undergrad
  underside
  understaffed
  undermine
  undersurface
  undertide
  undertone
  underdone
  understanding
  underframe
  underspend
  undergird
  understate
  understandably
  undergraduate
  understandable
  undercoated
  undercharge
  under_wraps
  underworld
  understated
  undersealed
  underpin
  underbid
  undersea
  underground
  underdevelop
  underfur
  underfed
  underachieve
  underage
  underbred
  Underwood
  undercoat
  underwing
  Underdahl
  underdeveloped
  underwear
  underpart
  undermentioned
  undersign
  underseal
  underplay
  Underhill
  underhung
  underivative
  underived
  underlie
  underling
  Underdown
  under_way