1. Like a sister; becoming a sister; affectionate.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• sterly,
• secterly,
• dasterly,
• sisterr,
• sistern,
• sicerly,
• siserly,
• sistere,
• misterly,
• sisterlke,
• sisterlie,
• siterly,
• sistrly,
• sistery,
• sistrely,
• sistterly,
• sisterlly,
• sisterlyy,
• disserly,
• unsistery

• sistrunk,
• sister,
• sister ship,
• sisterhood,
• sistership,
• sisterlike.

The adjective form of "sisterly" is "sororal".

The plural form of the word "sisterly" is "sisterlies" However, it is worth noting that "sisterly" is not commonly used in its plural form.

The singular form of the word "sisterly" is "sister"