(Watching "The Murder of Gonzago")

Rosencrantz/Guildenstern: Not exactly fraternal.
The Player: Not exactly avuncular, as time goes on.
Rosencrantz and Guildenstern are dead, Tom Stoppard.

[Avuncular? clicketyclicketyclick]

avuncular \uh-VUNG-kyuh-lur\, adjective:
1. Of or pertaining to an uncle.
2. Resembling an uncle, especially in kindness or indulgence.