Synonyms of strenuously

2 Syllables
strongly
3 Syllables
studiously, busily, eagerly, hungrily, thirstily, cravingly, cumbrously, gruelingly, longingly, zealously, ardently, breathlessly, lustily, healthily, devoutly, zestfully, vibrantly
4 Syllables
diligently, industriously, unweariedly, difficultly, impatiently, spiritedly, vigorously, unwieldily, forcefully, untiringly, vigilantly, laboriously, expectantly
5 Syllables
animatedly, perseveringly, cumbersomely
6 Syllables
indefatigably, energetically
7 Syllables
anticipatorily