a. [UN-1 7 c.] = UNBROTHERLY a.
1594. West, 2nd Pt. Symbol. Chancerie, § 118. To thintent onely and thereby of set purpose, malice, and unbrotherlyke dealing to defraude your said Orator.
1667. Decay Chr. Piety, xvii. ¶ 3. I mean Victors unbrotherlike heat towards the Eastern churches in the controversie about Easter.
1877. Tennyson, Harold, V. i. O brother, most unbrotherlike to me, Thou gavest thy voice against me in my life.