~に劣らず (no less than / not inferior to)

She's no less beautiful than her sister.

She's every bit as attractive as her older sister.

She's just as good-looking as her older sister.

She's as smart as anyone in the class.

She studies as hard as any student in the class.

She is no less charming than her older sister.

She is no less attractive than her older sister.

She's no less of a beauty than her older sister.

She's no less beautiful than even her older sister.