say it: HAHRD-hed-id
hardheaded is an adjective meaning "unreasonably rigid in the face of argument or entreaty or attack". It carries 2 recorded senses.
guided by practical experience and observation rather than theory
“a hardheaded appraisal of our position”
“a hard-nosed labor leader”
“completely practical in his approach to business”
“not ideology but pragmatic politics”
Definitions, synonyms and semantic relations for hardheaded come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.