craftsman's spirit; pride in one's work
Refers to the dedication, skill, and pride a true craftsman puts into their work. Often used positively, but can sometimes imply stubborn traditionalism.
You can feel the craftsman's spirit in his work.
With a craftsman's pride, he finished it carefully down to the last detail.
職人気質 is similar but emphasizes the temperament or disposition of a craftsman, while 職人根性 focuses more on the spirit, pride, and sometimes stubborn dedication.
Compound of 職人 (craftsman) and 根性 (spirit, willpower). The exact historical derivation is uncertain, but the term naturally describes the ingrained spirit of a skilled artisan.