Difference between Stupid and Imbecilic

STUPID vs IMBECILIC: NOUN

Without much intelligence
Slow to learn or understand; obtuse.
Tending to make poor decisions or careless mistakes.
Marked by a lack of intelligence or care; foolish or careless.
Dazed, stunned, or stupefied.
Used to express disparagement or exasperation.
Very dull; insensible; senseless; wanting in understanding; heavy; sluggish; in a state of stupor; -- said of persons.
Lacking or marked by lack of intellectual acuity
Lacking intelligence
In a state of mental numbness especially as resulting from shock
Damn, annoying, darn
Amazing.
Lacking sensation; inanimate; destitute of consciousness; insensate.
Characterized by or in a state of stupor; paralysed.
To the point of stupor.
Lacking in intelligence or exhibiting the quality of having been done by someone lacking in intelligence.
Resulting from, or evincing, stupidity; formed without skill or genius; dull; heavy; -- said of things.

Having a mental age of three to seven years
Like or as an imbecile; so senseless as to be laughable; absurd, foolish, stupid, idiotic.

In a state of stupor; having the faculties deadened or dulled; stupefied, either permanently or temporarily; benumbed.
Lacking ordinary activity of mind; dull in ideas or expression; slow-witted; obtuse; crass.
Characterized by mental dullness or inanity; witless; senseless; foolish; inane: as, a stupid joke; a stupid book; stupid fears.
Synonyms Heavy, dull, drowsy, lethargic, comatose, torpid.
Muddy-brained, muddled.
Silly, Foolish, etc. (see absurd); flat, tame, humdrum, pointless, prosaic. See list under foolish.

Senseless, Cloddish, Obtuse, Thickheaded, Imbecilic, Imbecile, Dolt, Fool, Boneheaded, Dopey, Brainless, Unintelligent, Moronic, Foolish, Dumb

Senseless, Cloddish, Obtuse, Thickheaded, Imbecilic, Imbecile, Dolt, Fool, Boneheaded, Dopey, Brainless, Unintelligent, Moronic, Foolish, Dumb

This is just so utterly stupid it boggles my mind and you should be ashamed for saying such a stupid thing.
IWT was stupid, the name was stupid, and why should anyone listen to me?
Stupid stupid claims people who do not even research a claim and try to cover up their mistakes.
If Abbott is not stupid, why does he keep doing stupid things?
There are no stupid questions just stupid people.
Play stupid games, win stupid prizes I guess.
To be truly stupid, you cannot play stupid.
He made some fundamentally stupid people _look_ stupid.
Then I went and did a stupid, stupid thing.
My mama says that stupid is as stupid does.

Granted the rest of the game was a joke too, but combat was imbecilic.
Similar to commitment of a habitually insane ship I imbecilic person, person and his estate?
And then you drift over to imbecilic hypotheticals.