energy

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

Antonyms: idleness inactivity laziness lethargy tiredness

Synonyms: application burn conductivity current dynamism electricity force friction gravity heat horsepower juice kilowatts magnetism potential pressure radioactivity rays reaction response service steam strength voltage wattage