Definition of "bluff-headed" in English

adjective

(nautical) Built with the stem nearly vertical, as opposed to one with a rake that extends far beyond the keel.
(by extension) Having a broad, precipitous front or face.
(zoology) Having a rounded head with a flattish snout.
(by extension, of bullets) Having a rounded tip, as opposed to a flat or pointed tip.
Having a broad face and gruff manners, especially when not exceptionally clever or assertive.