寛大な人だ

is a generous person

→ 寛大だ
phrase Rare #40,581
is a generous person 寛大な means generous, broad-minded, or forgiving; 人 means person, and だ is the plain-style copula.
JA: 彼は失敗しても怒らない寛大な人だ。
EN: He is a generous person who doesn't get angry when others make mistakes.

彼女は寛大な人だ

She is a generous person.

彼は生まれつき寛大な人だ

He is generous by nature.

先生は寛大な人だからね

The teacher is a very generous person, after all.

— フォーリング・ダウン (1993)