Webster's 1913 Dictionary
HARD-HEADED
HARD-HEADED Hard "-head `ed, a.
Defn: Having sound judgment; sagacious; shrewd. -- Hard "-head `ed *ness, n.
Oxford Dictionary
hard-headed
hard-headed ▶adjective practical and realistic; not sentimental: a hard-headed businessman. DERIVATIVES hard-headedly adverb, hard-headedness noun
Oxford Thesaurus
hard-headed
hard-headed adjective a hard-headed businessman: unsentimental, practical, pragmatic, businesslike, realistic, sensible, rational, tough, clear-thinking, cool-headed, hard-bitten, down-to-earth, matter-of-fact, no-nonsense, with one's /both feet on the ground; shrewd, astute, sharp, sharp-witted; informal hard-nosed, hard-boiled. ANTONYMS idealistic.