unsolvable

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

not easily solved
- an apparantly insolvable problem
- "public finance...had long presented problems unsolvable or at least unsolved"- C.L.Jones
• Syn:
insolvable, unsoluble, unresolvable
• Similar to:
insoluble

• Từ đồng nghĩa / Synonyms:
  insolvable, unsoluble, unresolvable