Synonyms|567Antonyms|208|Broader|11Narrower|8Related|1.1k
3
complicated(adjective, hard, tough, severe, rough)
3
dogged
3
hard-working(adjective, thorough, exertion, meticulous, painstaking)
3
hardworking
3
labored(adjective, hard, great, tough, rough)
3
persevering(adjective, thorough, meticulous, painstaking)
3
strained
3
unremitting
3
unwearied(adjective, tireless)
3
vehement(adjective, difficult, intense, energetic, lively)
3
wicked(adjective, difficult)
2
agitated(adjective, vigorous)
2
all-out
2
athletic(adjective, strong, tough, intense, energetic)
2
bothersome(adjective, tough, severe, difficult, awkward)
2
burning(adjective, difficult, vigorous, stressful)
2
cantankerous(adjective, difficult, energetic, antagonistic, aggressive)
2
careful(adjective, thorough, meticulous, painstaking)
2
challenging(adjective, great, tough, severe, difficult)
2
conscientious(adjective, thorough, meticulous, painstaking)
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APASmart Define. (2016). strenuous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/strenuous/thesaurus/synonyms
ChicagoSmart Define. 2016. "strenuous thesaurus" https://smartdefine.org/strenuous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, strenuous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/strenuous/thesaurus/synonyms>.
MLASmart Define. "strenuous thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/strenuous/thesaurus/synonyms>