Difference between Stupid and Dullard

STUPID vs DULLARD: 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 in intelligence or exhibiting the quality of having been done by someone lacking in intelligence.
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.
Resulting from, or evincing, stupidity; formed without skill or genius; dull; heavy; -- said of things.
To the point of stupor.

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

Ignoramus, Buffoon, Moron, Dunderhead, Simpleton, Nincompoop, Dimwit, Veriest, Stupid person, Pudding head, Pudden head, Poor fish, Bore, Stupid, Dolt

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

Oaf, Nitwit, Doofus, Ignoramus, Buffoon, Moron, Dunderhead, Simpleton, Nincompoop, Dimwit, Veriest, Stupid person, Bore, Stupid, Dolt

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.

He is a dullard, he is slow, he does not say intelligent things, he does not have clear thoughts.
So a simpleton could be considered a hillbilly or yokel as well as a dullard or dunce.
The wisdom of a million fools in the diction of a dullard.
The error, when pointed out, is so obvious, that it must be at once corrected, to the conviction of the merest dullard.
This dullard has done this to me twice and now I have stuff shipped Fedex to the office.
Subject: Re: man is dull Summary: But is Poundstone a dullard?
He was expelled from his first school as a dullard.