| operose | (adj) ซึ่งขยันหมั่นเพียร, See also: ซึ่งอุตสาหะ, Syn. industrious, diligent, Ant. inactive, inert |
| Operose | a. [ L. operosus, fr. opera pains, labor, opus, operis, work, labor. ] Wrought with labor; requiring labor; hence, tedious; wearisome. “Operose proceeding.” Burke. “A very operose calculation.” De Quincey. -- |
| arduous | (adj) characterized by effort to the point of exhaustion; especially physical effort, Syn. punishing, heavy, gruelling, laborious, toilsome, hard, operose, backbreaking, grueling, Example: worked their arduous way up the mining valley; a grueling campaign; hard labor; heavy work; heavy going; spent many laborious hours on the project; set a punishing pace |
| laboriousness | (n) the quality of requiring extended effort, Syn. operoseness, toilsomeness |