unanswerable
Concise Oxford English Dictionary © 2008 Oxford University Press:
unanswerable/ʌnˈɑːnsərəbl/
▶adjective
- 1 unable to be answered.
- 2 unable to be refuted.
– derivatives
unanswerably adverb.
unanswerably adverb.
'unanswerable' also found in these Oxford entries:

