1. in a laborious or industrious manner; with great effort or diligence
Usage: formal; literary

Examples

• The scholar operosely compiled decades of research into a comprehensive volume.
• She operosely crafted each piece of jewelry by hand.
• The committee operosely reviewed every detail of the proposal.
• He operosely transcribed the ancient manuscripts.
• The artist operosely painted each intricate detail of the mural.