Wiktionary
concentratedly
adv. In a concentrated way
Usage examples of "concentratedly".
He sat in front of the block, studied it concentratedly, allowed it to speak, to establish its own demands.
He gazed over at Tommaso, who was drawing concentratedly with charcoal.
Once aboard and sitting in the left-hand (captain's) seat he equally seriously completed his pre-starting checks--all switches in good order, and things like that--and finally started the engine, gazing concentratedly at its gauges.
At the bridge over the waters which make an island of Miami Beach, gasoline lights burned and a score of diligent net-casters stared concentratedly into the swift, slick tide below.