不ふ特とく定てい

noun which may take the genitive case particle 'no', na-adjective, noun

unspecified; random; indefinite

Used to describe something that is not specifically identified or determined, often in contrast to 特定 (specified). Common in phrases like 不特定多数 (unspecified large number of people).

• 不ふ特とく定てい多た数すうの人ひとが集あつまる場ば所しょでは注ちゅう意いが必ひつ要ようだ。

  You need to be careful in places where an unspecified large number of people gather.