OPEROSE

arduous, backbreaking, grueling, gruelling, hard, heavy, laborious, operose, punishing, toilsome

(adjective) characterized by effort to the point of exhaustion; especially physical effort; “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”

Source: WordNet® 3.1

Etymology

Adjective

operose (comparative more operose, superlative most operose)

(now, rare) Of a person: busy, industrious, or painstaking. [from 16th c.]

(now, rare) Made with or requiring a lot of labour; painstaking, laborious. [from 17th c.]

(now, rare) Tedious, wearisome.

Anagrams

• roopees

Source: Wiktionary

Op"er*ose`. a. Etym: [L. operosus, fr. opera pains, labor, opus, operis, work, labor.]

Definition: Wrought with labor; requiring labor; hence, tedious; wearisome. "Operose proceeding." Burke. "A very operose calculation." De Quincey.

– Op"er*ose`ly, adv.

– Op"er*ose`ness, n.

Source: Webster’s Unabridged Dictionary 1913 Edition