1. Exhibiting methodical and systematic characteristics that would be useful in business 
2. Not distracted by anything unrelated to the goal
   - earnest

See also: efficient, purposeful

• quadrilateral
• quadrille
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• quadrillionth
• quadripara
• quadripartite
• quadriphonic
• quadriphonic system
• quadriplegia
• quadriplegic
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• quadrumvirate
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• quadruple time
• quadruplet
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• quadruplicate
• quadruplication