Which character trait signifies an inclination toward aggression when stimulated?

The characteristic that signifies an inclination toward aggression when stimulated is sharpness. In the context of canine behavior and training, sharpness refers to a dog's heightened sensitivity and responsiveness to stimuli, particularly in a way that may lead to aggressive reactions. A sharp dog is quick to react, often showing a readiness to respond defensively or offensively when they perceive a threat or feel provoked. This can manifest as aggression in certain situations, especially when the dog feels cornered or challenged.

In contrast, other traits such as fear indicate a more submissive or avoidant behavior, while softness reflects a gentle disposition that is not inclined toward aggression. Hardness may suggest resilience but does not necessarily involve an increased tendency toward aggression in response to stimuli. Understanding these traits helps in assessing canine behavior in various scenarios, especially in law enforcement and training contexts where aggressive response may be needed under specific circumstances.