Impossible to answer or respond to; not capable of being answered adequately.
From dis- (reversal, negation) + answerable (able to be answered, responsible). Answerable comes from answer + -able suffix.
Some of life's biggest questions—'Why do we exist?' or 'What happens after death?'—might be fundamentally disanswerable, which is why philosophy and religion have explored them for thousands of years without definitive answers.
Complete word intelligence in one call. Free tier — 50 lookups/day.