1. Not easily solved
   "an apparently insolvable problem"
   - unsoluble, unsolvable, unresolvable

See also: insoluble

Encyclopedia: Insolvable

• walk in
• walk of life
• walk off
• walk on air
• walk out of
• walk the plank
• walk-on
• walk-through
• walk-to
• walk-up
• walk-up apartment
• walkabout
• walkaway
• walker
• Walker foxhound
• Walker hound
• Walker Percy
• Walker Smith
• walkie-talkie
• walkies
• walking
• walking delegate
• walking fern
• Walking horse
• walking leaf