expression
regardless of; irrespective of
Formal expression used to indicate that something applies no matter what the preceding condition is. Often follows a noun or noun phrase with の, as in ...の如何を問わず.
See also: 如何に関わらず
年齢の如何を問わず、誰でも応募できます。
Anyone can apply, regardless of age.
理由の如何を問わず、遅刻は認められません。
Lateness will not be accepted, irrespective of the reason.
Synonymous and more common in modern formal writing. 如何を問わず is slightly more literary.
Compound of 如何 (いかん, 'how; what kind') + を (object marker) + 問わず (negative continuative of 問う, 'to ask; to question'), literally 'without asking how/what'.