arduously Definition

hard, assiduously, laboriously, tirelessly, diligently, painstakingly, feverishly, indefatigably, industriously, relentlessly, doggedly, determinedly, ceaselessly, tediously, patiently, energetically, conscientiously, tenaciously, furiously, unstintingly, earnestly, fruitlessly, intensively, strenuously, sedulously, unceasingly, studiously, exhaustively, endlessly, incessantly, valiantly, methodically, devotedly, meticulously, intensely, skillfully, obsessively, manfully, zealously, busily, courageously, resourcefully, gamely, ferociously, mightily, fruitfully, skilfully, dexterously, feverously, steadfastly, vigorously, tortuously, frantically, dutifully, ardently, resolutely, vainly, fastidiously, competently, frenetically, selflessly, neurotically, nobly, faithfully, deliberatively, continuously, pragmatically, adroitly, toilsomely, uncomplainingly, intermittently, minutely, constantly, fervidly, insistently, inexpertly, torturously, gruelingly, unendingly, comprehensibly, gainfully, interminably, remorselessly, valuably, perseveringly, heroically, nimbly, sporadically, sleeplessly, stolidly, ineffectually, stiffly, idealistically, didactically, barrenly, joylessly, masterfully, voraciously, consciously, thoughtfully,