The case (=reasons for doing something) for better public transport is unanswerable.unanswerableun‧an‧swer‧a‧ble /ʌnˈɑːnsərəbəl $ ʌnˈæn-/ adjective 
The case (=reasons for doing something) for better public transport is unanswerable.
EXAMPLES FROM OTHER DICTIONARIES
- unanswerable criminal charges
- Being unanswerable, it suggests that the terms of the discussion are wrong.
- But when she arrived on the fine white sand of the cove the question was still there, unanswered and unanswerable.
- However, it was no use pondering on unanswerable questions.
- Nobody, and least of all S. O. Letterman, expects me to come back with answers to unanswerable questions.
- One last problem remains, but is probably unanswerable.
- The path of the law is, as Megarry J. stated, strewn with examples of unanswerable charges which were completely answered.
- There were so many questions - all unanswerable.
- This book provides an unanswerable riposte to such nostalgic nonsense.
COLLOCATIONS FROM THE ENTRY The case (=reasons for doing something) for better public transport is unanswerable.COLLOCATIONS FROM THE CORPUSNOUN
1an unanswerable question is one that cannot be answered2definitely true and therefore impossible to argue against: The case (=reasons for doing something) for better public transport is unanswerable.· Nobody, and least of all S. O. Letterman, expects me to come back with answers to unanswerable questions.· However, it was no use pondering on unanswerable questions.· And yet he knew that Anne would find such an answer to her unanswerable question inadequate and unsatisfying.· This hint of planning poses as yet unanswerable questions about the early impetus towards urban development.· She glanced down, dusting the dirt from the pebble off her hands, wondering how to answer such an unanswerable question.
The case (=reasons for doing something) for better public transport is unanswerable.