energetic

/ˌɛnəˈdʒɛtɪk/adjective

Full of power or strength; producing strong effects.

Example sentences

“The detector picks up energetic particles streaming in from space.”
“Our energetic new trainer had us doing three workouts a week.”

Applied to people it means lively and vigorous, the common use; physics keeps the technical sense of involving energy.

Related words

enervateTo drain someone's strength or energy; to weaken.endureTo keep going or last through time, even when facing hardships or difficulties.engagementThe state of being interested and involved in something, feeling drawn in and curious about what comes next.enduranceThe ability to keep going through effort, pain, or difficulty for a long time; stamina.engrossTo copy a document in large, clear, carefully formed lettering; to prepare its final official version.endorseIn heraldry, a narrow vertical stripe, a smaller version of the pale, usually shown in pairs on both sides of one.