- 2Significado: industriousassiduous diligent laborious sedulousbusy overworked hard-working
- 3Significado: propertydifficult arduous laborious hard stiff
- 4Significado: burdensomefatiguing tiring laboriousstrenuous toilsome wearisome
- 5Significado: arduouspainstaking difficult tortuouslaborious severe painful
- 6Significado: tirelesslaborious unfailing indefatigable notableunrelenting industrious patient diligent
- 7Significado: difficultarduous burdensome fatiguing tiresomewearisome onerous toilsome laborious
- 8Significado: painstakingdetailed assiduous diligenthard-working industrious laborious
- 9Significado: tiresomegrinding laborious strenuous tedioushard arduous onerous gruelling
- 10Significado: hardlaborious arduous strenuous difficult
- 11Significado: diligentindustrious constant laborious devotedapplied sedulous assiduous