Answer: perkier

AnswerCrossword Clue
PERKIERLess lethargic
PERKIERMore cheerful
PERKIERLess languid
PERKIERMore vivacious
perkierPERKY, jaunty (briskly self-assured, also JANTY, JANTEE, JAUNTEE)
perkierCheerful and lively