These are some adjectives which describe the major characters in Romeo and Juliet, with brief explanations
Romeo: romantic, impetuous.
Romeo first appears as a rather conventional languishing lover and, even after he meets Juliet, he continues to express himself in the conventional language of the romantic lover (comparing eyes to stars, swearing by the “inconstant moon,” etc.). He often acts suddenly and without thinking.
Juliet: loyal, intelligent
Juliet is torn between her loyalty to her family and her love for Romeo, particularly when Romeo kills Tybalt. Her family loyalty is not easy to overcome, but after her marriage, she decides she must be entirely loyal to Romeo. She is the more intelligent and thoughtful of the two, as Friar Laurence notes when marrying them.
Mercutio: witty, volatile
Mercutio is mainly notable for his dazzling, imaginative wordplay and rhetoric. He is also quick to anger and resents Romeo’s “calm, dishonorable, vile submission” to Tybalt.
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