- 2Significato: character traitenergetic ardent eager zealous vigourousforceful strenuous earnest strong
- 3Significato: burdensomefatiguing tiring laboriousstrenuous toilsome wearisome
- 4Significato: effectivehigh strenuous effectual efficaciouspotent powerful strong energetic
- 5Significato: arduouslaborious toilsome strenuous
- 6Significato: energeticvigourous zealous spirited activeanimated forceful eager strenuous
- 7Significato: tiresomegrinding laborious strenuous tedioushard arduous onerous gruelling
- 8Significato: hardlaborious arduous strenuous difficult
- 9Significato: resolutepositive resolved inflexible setstrenuous rigid sturdy determined
- 10Significato: ferventpassionate ardent warm strenuouseager enthusiastic strong earnest