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also gru·el·ling  (gro͞o′ə-lĭng, gro͞o′lĭng)
Physically or mentally demanding to the point of exhaustion: a grueling campaign.

gru′el·ing·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈgru ə lɪŋ, ˈgru lɪŋ)

exhausting; very tiring; arduously severe: a grueling marathon.
n. Also, esp. Brit.,gru′el•ling.
[1850–55; gruel punishment (n.), punish (v.) (compare to get one's gruel to be punished, killed) + -ing2, -ing1]
gru′el•ing•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.grueling - characterized by effort to the point of exhaustiongrueling - 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"
effortful - requiring great physical effort
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


(American) grueling (ˈgrueliŋ) adjective
exhausting. a gruelling race.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in periodicals archive ?
1 / 2 Racers gearing up to take part in the grueling Dakar Rally being staged in Saudi Arabia were on Thursday given the green light to submit their applications.
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The Pacific Crest Trail reaches from Mexico to Canada: a grueling stretch with many physical demands.
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Graphic depictions of violence and sex are present in dark saga; The Advent of the King is not for squeamish readers, yet its vivid detail paints an unforgettable picture of the grueling difficulties of struggling to survive in medieval times.
Sure, sweatshop work is tedious, grueling, and sometimes dangerous.
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In A Modern Line, Keigwin puts the grueling process of a Chorus Line-style audition into the context of everyday life.
Coe recalls in detail his grueling and fruitful excavations in Guatemala and Tennessee, his early work studying the Olmecs and their predecessors, and his establishment of a successful Mesoamerican program at Yale University before his retirement in 1994.