underbelly
1. [ noun ] (zoology) the soft belly or underside of an animal's body
Synonyms: underbody
Related terms: abdomen
2. [ noun ] lower side
Examples:

: "the underbellies of clouds"

Related terms: bottom
3. [ noun ] the quality of being weak or unprotected
Examples:

"the soft underbelly of the Axis"- Winston Churchill

Related terms: weak_part
Similar spelling:   undersell
  underlay
  underplay
  underbody
  Underhill
  undershrub
  underlying
  underbodice
  underseller
  underfur
  underlie
  underbid
  underage
  underdevelop
  undergarment
  undercurrent
  underlayment
  underfelt
  Underdahl
  underbred
  undergird
  underboss
  underived
  underdone
  underline
  unadorned
  underling
  undermine
  underpart
  underpay
  underrate
  underseal
  underside
  undersize
  underwear
  undersoil
  underway
  undersurface
  undertone
  undertide
  undertake
  under_way
  undervalue
  underspent
  underclass
  under_arms
  underspend
  underdress
  underslung
  underbrush
  underworld