1. Passion and Wildness: Catherine is depicted as passionate, wild, and untamed. This is in stark contrast to the more docile and conventional Isabella. Catherine's emotional intensity sets her apart and hints at her fiery, tempestuous nature.
2. Independence and Nonconformity: Catherine shows a disregard for society's expectations and customs. She is uninterested in conforming to the traditional roles reserved for women of her time. Unlike Isabella, she defies social norms and follows her heart's desires without hesitation.
3. Strong-Willed and Headstrong: Catherine exhibits considerable determination and willfulness. When she sets her mind on something, she pursues it passionately, regardless of consequences. This headstrong nature will influence her choices throughout the novel, often leading to conflict and tragedy.
4. Unrestricted Imagination: While sister is content with conventional pastimes, Catherine possesses a rich and unconstrained imagination. She loves escaping into her romantic ideas of freedom and happiness.
5. Depth of Emotion: In contrast to Isabella's superficial emotions, Catherine experiences feelings profoundly. Her love for Heathcliff is all-encompassing and fierce, highlighting her intense emotional capacity.
In essence, the strong contrast between Catherine and Isabella allows readers to understand more about Catherine's deep feelings, unyielding temperament, and unconventional spirit from the very beginning of their story.