arduously Synonyms

with great effort hard way gruellingly gruelingly exhaustingly energetically distressingly cumbrously cumbersomely burdensomely agonisingly industriously painstakingly oppressively with difficulty unwieldily unbearably tryingly troublesomely toilsomely tiringly tiredly strenuously painfully tiresomely laboriously inconveniently heavily harshly hardly hard diligently difficultly carefully badly agonizingly indefatigably intensely mightily severely awkwardly assiduously excruciatingly vigorously sedulously toughly roughly ponderously onerously agilely