As adjectives the difference between mulish and pigheaded
is that mulish is characteristic of a mule; stubborn, obstinate, or intractable while pigheaded is obstinate and stubborn to the point of stupidity.
mulish
English
Adjective
(
en adjective)
Characteristic of a mule; stubborn, obstinate, or intractable
Synonyms
*stubborn as a mule
* See also
pigheaded
English
Adjective
(
en adjective)
(pejorative) Obstinate and stubborn to the point of stupidity.
Synonyms
* See also