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laborious

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The definition of laborious is something that requires a lot of work and that is often tedious or difficult.

(adjective)

Building a house is an example of a process that would be described as laborious.
Reading a badly written essay that lacks in fluency is an example of a task that would be described as laborious.

See laborious in Webster's New World College Dictionary

adjective

involving or calling for much hard work; difficult
industrious; hardworking
labored

Origin: ME < OFr laborios < L laboriosus < labor, labor

Related Forms:

laboriously adverb
laboriousness noun

See laborious in American Heritage Dictionary 4

adjective

Marked by or requiring long, hard work: spent many laborious hours on the project.
Hard-working; industrious.

Origin:

Origin: Middle English

Origin: , from Old French laborieux

Origin: , from Latin labōriōsus

Origin: , from labor, labor

Related Forms:

la·boˈri·ous·ly adverb

la·boˈri·ous·ness noun

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