adj
laborious
luh-BAW-ree-uhs
adj
1
Requiring a great deal of physical effort; tiring and hard work.
"Digging the trench by hand was a laborious task that took all day."
2
Slow, difficult, and demanding careful effort mentally, rather than fun or quick.
"Translating the old manuscript was a laborious process that took months."
How to Use Laborious
Learner’s notesIn plain EnglishDescribes something that takes a lot of hard, often tedious, effort to finish.
Common pairings
laborious process
laborious task
slow and laborious
Word Forms
more laborious comparative, most laborious superlative
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Etymology
From Old French laborios, from Latin laboriosus, built on labor, "work."