I . a.
Laborious, sedulous, diligent, industrious, careful, plodding, assiduous, strenuous, hard-working, persevering, sparing no pains.
II . n.
Labor, industry, assiduity, diligence, perseverance, careful toil, conscientious exertion.
I . a.
Laborious, sedulous, diligent, industrious, careful, plodding, assiduous, strenuous, hard-working, persevering, sparing no pains.
II . n.
Labor, industry, assiduity, diligence, perseverance, careful toil, conscientious exertion.
Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012