Which of these words has a negative connotation? respect delight jealousy sympathy

The answer is: jealousy.

The word jealousy has a strong negative connotation and it expresses a feeling, usually of an unconscious nature, of lack, insecurity, or fear of losing something that is believed to be one´s own possession. As such it can refer to objects in general, but, colloquially it relates to a sense of insecurity regarding a loved or cherished one.