Grammar › N2 · 04 Purpose, means and scope
〜を問わず: regardless of
N2 · 04 Purpose, means and scope
Says that something applies without regard to differences such as age or season.
Noun + を問わず. The noun is usually a pair or a word of range: 年齢・性別を問わず, 昼夜を問わず. Written and formal. Compare 〜にかかわらず, very close.
Examples
このイベントは年齢を問わず、誰でも参加できる。
Anyone can join this event regardless of age.
昼夜を問わず、工事が続けられている。
Construction continues day and night, no matter the hour.