Bulldoggishly is an adjective that refers to a person or behavior that is stubborn, aggressive, and determined. Some synonyms for bulldoggishly include tenaciously, resolutely, fiercely, and determinedly. These words signify the same unwavering determination that bulldogs exhibit, and can be used to describe people who display similar traits. Other possible synonyms for bulldoggishly include unyielding, steadfast, strong-willed, and unrelenting. Such words emphasize the persistence and determination necessary to achieve one's goals, even in the face of challenges or obstacles. Whatever word is chosen, it should convey the toughness and unyielding spirit that bulldogs are known for.