Definition of hardworking
: constantly, regularly, or habitually engaged in earnest and energetic work : industrious, diligent
a hardworking young woman "Our students have to be very hardworking and committed. They put in long hours. …"— Beth Farbotnik
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Merriam-Webster unabridged
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Time Traveler for hardworking
The first known use of hardworking was in 1774
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