Adjective:
nongacabangeli , ukuqonda , injudicious , impolitic , gauche , lingena , heady , eziwubuwula , ngokuxhamazela , ngokungacabangi , uzwela , wangaba nozwela .
INCONSIDERATE. That is the adjective. INCONSIDERATE.
Sheldon, you are the most INCONSIDERATE person I have ever met in my entire life!