IPA: /ˌɛnərˈdʒɛtɪk/
KK: /ˌɛnərˈdʒɛtɪk/
Having a lot of energy; lively and full of enthusiasm.
The children were energetic and played outside all day.
Comparative: more energetic
Superlative: most energetic
Energetic → It is formed from "energeia" (from Greek, meaning activity or operation) and the suffix "-tic" (meaning relating to). The word "energetic" describes something that relates to or is characterized by activity or vigor.
Think of 'activity' ('energeia') to remember that 'energetic' means full of energy and vigor.