Aggressively self-confident or assertive; bullheaded
Optimistic; overly or foolishly optimistic or hopeful
Characterized by rising value.
Having a muscular physique, built 'like a bull'
Bitterly or jadedly distrustful or contemptuous; mocking.
Of or relating to the belief that human actions are motivated only or primarily by base desires or selfishness.
Like the actions of a snarling dog, especially in reference to facial nerve paralysis.
Showing contempt for accepted moral standards by one's actions.
Skeptical of the integrity, sincerity, or motives of others.