1. sisterly - Adjective
2. sisterly - Adverb
Like a sister; becoming a sister, affectionate; as, sisterly kindness; sisterly remorse.
Source: Webster's dictionaryActing is the most brotherly and sisterly profession in the world. Cyril Cusack
Thus attired, with smiles assumed at the door, the young ladies entered the drawing-room in the full fervour of sisterly animosity. Robert Smith Surtees
Edma painted a portrait of Berthe the artist about this time [1860-61]. It is not only a sisterly dedication, it is an important statement. Berthe stands before her easel, her right hand central to the picture, poised to touch her palette with a brush. The pretty round-faced girl had vanished. Berthe Morisot
sisterly kindness Source: Internet
sororal concern Source: Internet
TORONTO — A graphic novel, a work of experimental fiction and a sisterly collaboration are among the genre-bending reads in the running for Ontario’s Trillium Book Award. Source: Internet