Word

operose, adj.

characterized by effort to the point of exhaustion; especially physical effort
<adj.all> freq. cnt.: 4 freq. cnt.: 3 freq. cnt.: 1

arduous backbreaking grueling gruelling hard heavy laborious operose punishing toilsome

sample sentences

"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"

lexical pointers

derivationally related form

hardness

lexical pointers

derivationally related form

arduousness

lexical pointers

derivationally related form

heaviness

lexical pointers

derivationally related form

labor laboriousness