vigor (part of speech: noun)
ardency, industriousness, friskiness, lustiness, exuberance, sprightliness, enthusiasm, passion, liveliness, puissance, verve, energy, zeal, spirit, activity, power, eagerness, zest, relish, earnestness, animation, agility, strength, vigor, potency, vim, excitement, agitation, fervency
- In this sixty- year old child, upon whom the terror of John Wollaston's desperate illness lay more visibly than on any other member of the household, this look of gusto was especially striking. - "Mary Wollaston", Henry Kitchell Webster.
- When at last his eyes encountered Mrs. Westfall's, he snatched off his cap with elaborate gusto and sang out politely: Good morning, M's Westfall! - "Sube Cane", Edward Bellamy Partridge.
- On the final call, Madame Zichy threw to each of the animals a beer bottle filled with milk; and the gusto with which the savage- looking beasts uncorked the bottles and drank from them greatly amused the audience. - "The Nature Faker", Richard Harding Davis.