painstakingly
adv.to do something with great care and attention to detail. You use this when someone works very slowly and carefully to make sure everything is perfect.
adv.in a manner requiring great care, effort, and attention to detail. Often used to describe a process that is slow but thorough.
“She painstakingly cleaned the old painting for hours.”
“The researchers painstakingly analyzed every piece of evidence before they could reach a final conclusion.”
“The restoration of the cathedral was painstakingly carried out over several decades, with every stone and carving returned to its original position with surgical precision.”
“Jefferis' team and collaborators painstakingly analysed every nerve cell, every wire and every connection in a male fruit fly.”
“The road narrows as you enter Panna Tiger Reserve, one of central India's most ecologically rich corridors, home to tigers, gharials, and vultures painstakingly brought back from the edge of local extinction.”