Final answer:
Neuroticism, one of the Big Five personality dimensions, is synonymous with negative affectivity and involves the predisposition to experience negative emotions.
Step-by-step explanation:
The Big Five dimension neuroticism is synonymous with negative affectivity. Neuroticism is defined as a personality trait characterized by the tendency to experience negative emotions such as anger, anxiety, or depression. It represents one of the five dimensions in the widely accepted Five Factor Model of personality, which also includes openness to experience, conscientiousness, extraversion, and agreeableness. Individuals high in neuroticism may display emotional instability and are described as being easily rattled, in contrast to those who score low on neuroticism and tend to be more confident and stable.