Difference between Moron and Stupid

Key Difference: A Moron is a person who is notably stupid and frustrating or lacking in good judgment. A stupid person is one who is lacking in cleverness, understanding or reasoning.

Moron Moron and Stupid are basically one and the same thing. They can be used as synonyms and just describe things or situations where, like unfavorable things happen for avoidable reasons, or when something doesn't work out. For example: "Having that meeting was a stupid idea."

A person who is notably stupid and frustrating or lacking in good judgment is a moron. The term moron originated from the Ancient Greek word moros, meaning "dull" or "foolish". In the older times, it was observed that a moron is a stupid person with the mental age of between 7 to 12 years. However, in modern times, it just refers to a person whom one finds doing stupid things and the activities that are very irritating. Moron may also refer to places, surname, song, book, etc.

Stupid A person who is lacking in cleverness, understanding or reasoning is stupid. The term stupid originated from the Latin word stupidus, from stupere, meaning “be amazed” or “stunned”. He is a person who is lacking in intelligence and common sense. It is not their fault that they are not intelligent or a bit slow; it is just that they are not able to do things in a superior manner. For example: you could have a friend who is hard-working but stupid. The term is more often used as an address. Stupid may also refer to stupid (art movement), stupid (song), stupid (film), etc.

Comparison between Moron and Stupid:

	Moron	Stupid
Definition	A person who is notably stupid and frustrating or lacking in good judgment is a moron.	A person who is lacking in cleverness, understanding or reasoning is stupid.
Origin of the word	Greek mōron, neuter of mōros ‘foolish’	From French stupide or Latin stupidus, from stupere 'be amazed or stunned'
Century	Early 20^th century	Middle of 16^th century
Synonyms	Idiot, nerd, blockhead, domb, dork, dumbbell	Unintelligent, dumb, dim, brainless, simple-minded, empty headed, foolish
Type	Noun	Adjective or Noun
May also refer to	Places, surname, song, book, etc.	Art movement, song, film, etc.
Example	“There are total morons driving all over our roads!” “They were acting like a bunch of morons.”	“I may be dumb, but I’m not stupid.” “I was stupid enough to think she was perfect.”