The time of one's life is a phrase that refers to a period of time when someone is having a great and memorable experience. There are many different synonyms that can be used to describe this type of time such as a "blast", "jolly", "high spirits", "great fun", "unforgettable experience" and "adventure". These words convey the feelings of joy, happiness and excitement that come with a memorable experience. Whether it's traveling to a new place, attending a concert or throwing a party, the time of one's life is a moment that should be cherished and remembered for years to come.