178 entries under severe topic. ×

11
onerous(adjective, dull, hard, tough)
11
precise(adjective, fastidious)
11
troublesome(adjective, hard, tough, difficult)
10
trying(adjective, dull, hard, tough)
9
stringent(adjective, rigid, tight)
8
nice(adjective, hard, correct, rough)
8
bothersome(adjective, hard, tough, difficult)
8
picky(adjective, tough, grim, critical)
8
toilsome(adjective, hard, tough, difficult)
7
challenging(verb, adjective, hard, tough)
7
rough(adjective, hard, tough, difficult)
7
rugged(adjective, hard, tough, rough)
6
austere
6
formidable(adjective, tough, rough, difficult)
6
grim(adjective, tough, difficult, harsh)
6
hypercritical(adjective, cross, contrary, meticulous)
6
unyielding(adjective, hard, tough, easy)
6
weighty(adjective, hard, difficult, harsh)
5
inflexible(adjective, hard, rough, difficult)
5
knotty(adjective, hard, tough, rough)
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APASmart Define. (2015). demanding thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/demanding/thesaurus/synonyms
ChicagoSmart Define. 2015. "demanding thesaurus" https://smartdefine.org/demanding/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, demanding thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/demanding/thesaurus/synonyms>.
MLASmart Define. "demanding thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/demanding/thesaurus/synonyms>