〜に限らず

若者(わかもの)に限(かぎ)らず、高齢(こうれい)者(しゃ)にも人気(にんき)です。

Wakamono ni kagirazu, kōreisha ni mo ninki desu.

It is popular not only with the young but with older people too.

に限らず denies a boundary, and a wider range always follows

週末(しゅうまつ)に限(かぎ)らず、平日(へいじつ)も混(こ)んでいます。

Shūmatsu ni kagirazu, heijitsu mo konde imasu.

It is crowded on weekdays too, not just at weekends.

も usually marks the range being added

に限(かぎ)って は逆(ぎゃく)の意味(いみ)になります。

Ni kagitte wa gyaku no imi ni narimasu.

に限って means the opposite.

今日に限って means of all days, today — narrowing to a single point