Reviviscent is an uncommon word that means "becoming alive again." Some synonyms for reviviscent include rejuvenated, revitalized, restored, reanimated, and renewed. These words signify a state of being full of life and energy after a period of decline or dormancy. Other synonyms that can be used in place of reviviscent are resuscitated, animated, awakened, invigorated, and refreshed. The use of any of these synonyms allows the writer to create a vivid picture of a rejuvenated person, place or thing that has come to life once again. Whether it is a person's spirit, an old building, or a tired business venture, these words describe a new beginning.