hardheaded . hardheaded {adj.} Stubborn; shrewd; practical. Don is a hardheaded businessman who made lots of money, even during the recession. Categories: add yours {adj.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: H Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Leave my opinion