arduously

Adverb

Meaning

In an arduous manner; with difficulty or laboriousness.

Source: Webster's dictionary

hard heavily roughly carefully badly hardly densely intensely steeply diligently inconveniently indefatigably severely vigorously painfully

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easily freely lightly happily comfortably brightly

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they worked arduously Source: Internet

The staff at WD works arduously to make sure that operations run smoothly during production days. Source: Internet

San Pedro police are arduously following up on the matter but so far there has not been any breakthrough in the investigation. Source: Internet