Hardheaded and stubborn can mean the same thing. They are synonyms. Hardheaded can also mean realistic and pragmatic, but usually it means stubborn. If someone is stubborn they could be called hardheaded and vis-versa
A hard head (or hardheaded) means someone that is stubborn, or basically doesn't listen to anyone but themselves. -Brett
Stubborn?
The difference is between direct communication (You are stubborn) and indirect communication (This is the second time we are unable to reach an agreement). The first is explicit and straightforward, while the second is more subtle and implies the same message without directly stating it.
It means that you're stubborn or hardheaded. it means your a dweeb who should be taken to the institute and never seen again!
hammer
narg weted the bed
The Jordanian army is stubborn but always well prepared, as for the mesopotomian army, it always struck into battle without training.
The comparative form of the word "stubborn" is "more stubborn," and the superlative form is "most stubborn." These forms are used to compare the degree of stubbornness between two or more things. In English grammar, adjectives like "stubborn" follow this pattern when comparing levels of intensity or quality.
No seas tan terco/a.
I'd suggest the distinct difference is one's tolerance to others' opinions arguments, and attitudes insofar one can easily express tolerance of others and be stubborn yet being a tolerant bigot is an oxymoron.
This question, which could have been posted by a woman (who may, herself, be hardheaded), assumes that all men are hardheaded, which is not the case. Hardheadedness is a human trait. It might be argued that it is more common in males, but they are not uniformly so affected. Additionally, hardheadedness is not exclusive to men.
difference between as on and as at