31 entries under difficult topic. ×

15
urgent(adjective, hard, tough, firm)
15
exacting(adjective, harsh, heavy, serious)
15
pressing(adjective, hard, tough, firm)
14
demanding(adjective, hard, tough, firm)
13
insistent(adjective, hard, tough, firm)
11
onerous(adjective, harsh, heavy, demanding)
10
rigorous(adjective, heavy, severity, taxing)
10
strict(adjective, severity, taxing)
9
critical(adjective, hard, tough, big)
9
oppressive(adjective, hard, heavy, severity)
9
severe(adjective, hard, tough, harsh)
8
burdensome(adjective, heavy, troublesome, taxing)
8
importunate(adjective, hard, tough, firm)
7
clamorous(adjective, hard, tough, firm)
7
hard(adjective, heavy, severity, taxing)
7
stringent(adjective, severity, taxing)
7
tough(adjective, harsh, heavy, demanding)
7
weighty(adjective, hard, tough, harsh)
6
harsh(adjective, severity, taxing)
6
taxing(adjective, hard, harsh, heavy)
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APASmart Define. (2015). exigent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/exigent/thesaurus/synonyms
ChicagoSmart Define. 2015. "exigent thesaurus" https://smartdefine.org/exigent/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, exigent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/exigent/thesaurus/synonyms>.
MLASmart Define. "exigent thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/exigent/thesaurus/synonyms>