mulish
adjective
[ ˈmjuːlɪʃ ]
• resembling or likened to a mule in being stubborn.
• "a mulish expression"
Similar:
obstinate,
stubborn,
stubborn as a mule,
pig-headed,
recalcitrant,
refractory,
intransigent,
intractable,
unyielding,
inflexible,
unbending,
bull-headed,
stiff-necked,
headstrong,
difficult,
wilful,
self-willed,
cross-grained,
bloody-minded,
bolshie,
contumacious,
