impracticable
adjective /ɪmˈpræktɪkəbl/
  /ɪmˈpræktɪkəbl/
- impossible or very difficult to do; not practical in a particular situation- It would be impracticable for each member to be consulted on every occasion.
- This idea was considered completely impracticable.
 Oxford Collocations Dictionaryverbs- be
- prove
- seem
- …
 - completely
- quite
- totally
- …