unanswerable
un|an|swer|able /'ʌn'ɑːnsərəbəl, -'æns-/
1 [ADJ]
If you describe a question as unanswerable, you mean that it has no possible answer or that a particular person cannot possibly answer it.
They would ask their mother unanswerable questions.
2 [ADJ]
If you describe a case or argument as unanswerable, you think that it is obviously true or correct and that nobody could disagree with it.
The argument for recruiting McGregor was unanswerable.
1 [ADJ]
If you describe a question as unanswerable, you mean that it has no possible answer or that a particular person cannot possibly answer it.
They would ask their mother unanswerable questions.
2 [ADJ]
If you describe a case or argument as unanswerable, you think that it is obviously true or correct and that nobody could disagree with it.
The argument for recruiting McGregor was unanswerable.