ambitious -
Having a strong desire to succeed or achieve something, and showing determination and eagerness to reach goals.
The team set an ambitious target to double sales within a year.
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vigorous -
Very forceful or energetic.
Winston Churchill's 'Blood, toil, tears, and sweat' speech inspired England to have a vigorous response to the German invasion of Europe, and to the attack by planes of England.
noun
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powerhouse -
A person, organization, or thing that is very strong, effective, or influential in a particular field or activity.
The athlete became a powerhouse on the track, winning multiple championships and setting records.