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• s  characterized by effort to the point of exhaustion; especially physical effort
  spent many laborious hours on the project

• A servile and laborious process, but one that opened wallets across Japan: Esperanza's sales reached $95 million last year, up 20% from 1999.
• When the world's first text message was sent in 1993, no one foresaw that in just over a decade, the laborious act of texting would become a principal means of communication .
• Bragg's method required weeks of laborious calculation.

• arduous
• backbreaking
• grueling
• gruelling
• hard
• heavy
• operose
• punishing
• toilsome

News & Articles

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• Death Threats Cited in Zimmerman Trial
  The George Zimmerman murder trial begin in a Florida courtroom today, but instead of the tension and anger that has surrounded the case since Trayvon Martin was killed last year, it was marked by the laborious questioning of potential jurors. Lawyers for Zimmerman and the prosecution grilled a handful of the first 100 people in a pool that totals 500 people in an effort to find six jurors and ...
  June 10, 2013 - ABC News

Quotes

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• Jeffrey Davidow in Los Angeles Times
  It's been a laborious process of negotiation. Many of Venezuela's points were accepted, as were the points of the United States and other countries,Davidow told reporters in Mexico City, where Obama met with Mexican President Felipe Calderon...
• Mike Huckabee in Guardian Unlimited
  Sometimes the questions get a little laborious when they start asking you about intricate, nit-picky things of church doctrine that's probably not all that relevant to being president,Huckabee said.
• Wally Oppal in Vancouver Sun
  Right now, the police cannot wiretap suspected criminals unless they've gone through a laborious exercise of telling the authorizing judge that they've gone through a whole bunch of steps. By that time the trail is cold,Oppal said. "We...