Unbrother

The act of emotionally removing oneself from a sibling, specifically being a brother.

Lenny has been unbrothered.

by AGBBibag December 31, 2011

Unbrother

"Unbrother" is a informal term used to describe someone who disregards the bond of brotherly love or friendship, even though they are not necessarily blood-related. It implies that this person has disregarded or betrayed the trust and closeness associated with a brotherly relationship.

Xuan Li: I am unable to go to the club with you guys tonight.
Kevin: Its okay, i'm used to it, you're an unbrother

by AdrianLim69 February 6, 2023

unbrother

The step brother of your half sibling OR the half brother of your step sibling.

she married my unbrother, so I guess now she's my unsister-in-law

by ridl February 22, 2009

unbrother

when u stop being ur brothers sibling

if u don't stop snoring ill unbrother you

by Dorro January 6, 2022