a‧vun‧cu‧lar /əˈvʌŋkjələ, əˈvʌŋkjʊlə $ -ər/
adjective[
Date: 1800-1900;
Language: Latin;
Origin: avunculus; ⇒ uncle]
behaving in a kind and nice way to someone who is younger, rather like an uncle:
an avuncular pat on the shoulder [TahlilGaran] Dictionary of Contemporary English ▲