Synonyms|567Antonyms|208|Broader|11Narrower|8Related|1.1k

279 entries under adjective topic. ×

7
effortful(hard, great, tough, rough)
7
fatiguing(dull, difficult, awkward, boring)
7
lively(action, strong, tough, energetic)
7
operose(hard, tough, severe, rough)
7
peppy(action, strong, tough, informal)
7
powerful(strong, great, tough, difficult)
7
resolute(activity, energetic, zealous)
7
sedulous(thorough, meticulous, painstaking)
7
vital(strong, tough, intense, energetic)
6
aggressive(strong, energetic, lively, active)
6
ardent(difficult, energetic, active, vigorous)
6
assiduous(thorough, meticulous, painstaking)
6
backbreaking(strong, hard, rough, difficult)
6
brisk(action, strong, tough, intense)
6
diligent(thorough, meticulous, painstaking)
6
grueling(hard, tough, severe, difficult)
6
keen
6
kinetic(action, strong, moving, energetic)
6
oppressive(dull, difficult, harsh, cruel)
6
rough(action, hard, great, tough)
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APASmart Define. (2016). strenuous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/strenuous/thesaurus/synonyms
ChicagoSmart Define. 2016. "strenuous thesaurus" https://smartdefine.org/strenuous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, strenuous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/strenuous/thesaurus/synonyms>.
MLASmart Define. "strenuous thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/strenuous/thesaurus/synonyms>