vivacious

adj

1. Lively and animated; full of life and energy.

   “Thus then society is not arranged in clans, but in tribes, united by the general sense of a common name, a common abode, a common history, a common religion, and a remote sense of a common tribal stock, without any sense of personal affinity in each individual case. Again, it is curious to observe that the xenial relation was not less vivacious than that of blood.”

   “She made reasonable progress, entertained for me a vivacious, though perhaps not very profound, affection; and by her simplicity, gay prattle, and efforts to please, inspired me, in return, with a degree of attachment sufficient to make us both content in each other's society.”

   “Given the vivacious young redhead's attractiveness, some might have assumed he had more than simply professional reasons for sheepdogging her career, but they would have been wrong. He'd seen something in her ...”

2. (obsolete)Long-lived.

   “Hitherto the English bishops had been vivacious almost to wonder. For, necessarily presumed of good years before entering on their office, in the first of queen Elizabeth it was much that but five died for the first twenty years of her reign.”

3. (rare)Difficult to kill.