operose
51fagging — index operose Burton s Legal Thesaurus. William C. Burton. 2006 …
52fatiguing — index difficult, onerous, operose, oppressive Burton s Legal Thesaurus. William C. Burton. 2006 …
53formidable — I adjective alarming, appalling, arduous, awe inspiring, awesome, dangerous, deterring, difficult, disturbing, dreadful, exciting fear, fear inspiring, fearful, fierce, formidolosus, frightening, frightful, hard to overcome, horrible, horrifying …
54grinding — index erosion, onerous, operose, oppressive, tyrannous Burton s Legal Thesaurus. William C. Burton. 2006 …
55hard — index callous, close (rigorous), cohesive (compact), cold blooded, compact (dense), cruel …
56hard to cope with — index operose Burton s Legal Thesaurus. William C. Burton. 2006 …
57Herculean — index omnipotent, onerous, operose, powerful, prodigious (enormous), strong Burton s Legal Thesaurus. William C. Burton …
58industrious — I adjective active, adsiduus, aggressive, ardent, assiduous, busily engaged, busy, dedicated, determined, devoted, diligent, eager, earnest, energetic, enthusiastic, hard working, indefatigable, industrius, intent, laborious, never idle, operose …
59irksome — I adjective annoying, boresome, boring, bothersome, distressing, gravis, irritating, jejune, molestus, odiosus, tiresome, tiring, troublesome, weariful, wearing, wearisome, wearying II index i …
60laborious — index difficult, faithful (diligent), industrious, onerous, operose, oppressive, painful, painstaking …