moron
ˈmɔːrɒn/
noun
informal
noun: moron; plural noun: morons
-
a stupid person.“we can’t let these thoughtless morons get away with mindless vandalism every weekend”
Origin
early 20th century (as a medical term denoting an adult with a mental age of about 8–12): from Greek mōron, neuter of mōros ‘foolish’.
How my heart sings 