1. In a laborious manner
   "their lives were spent in committee making decisions for others to execute on the basis of data laboriously gathered for them"

See also: laborious

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• inverter
• invertible
• invest
• investigate
• investigating
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• investigatory
• investing
• investiture
• investment
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• investment banker
• investment company
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• investment letter
• investment trust
• investor
• investors club
• inveteracy
• inveterate