Pocket Thesaurus
Antonyms of energy
strength, toughness, power, vitality, stamina, efficiency, intensity, spirit, pizzazz, get-up-and-go, vim, dash, juice, zing, initiative, go, force, puissance, efficacy, zip, endurance, pep, liveliness, application, animation, vehemence, effectiveness, might, exertion, life, zest, fire, ardor, activity, punch, pluck, fortitude, moxie, hardihood, spontaneity, potency, tuck, zeal, verve, drive, forcefulness, enterprise, virility, muscle, steam, élan, vivacity, operativeness
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