155 entries under difficult topic. ×

90
harsh(adjective, mean, strong, hard, great)
64
hard(adjective, mean, strong, tough, easy)
48
serious(adjective, calm, help, bad, strong)
47
tough(adjective, clear, bad, strong, hard)
47
cruel(adjective, appearance, mean, strong, hard)
45
grave(adjective, calm, quiet, help, hard)
45
oppressive(adjective, hard, tough, rough, firm)
41
grievous(adjective, help, hard, tough)
40
strict(adjective, characteristic, strong, hard, tough)
38
austere(adjective, characteristic, appearance, mean, strong)
38
painful(adjective, bad, hard, tough, sharp)
37
difficult(adjective, hard, tough, rough)
37
sore(adjective, hard, nasty, harsh)
35
stern(adjective, appearance, mean, hard, tough)
34
arduous(adjective, hard, tough, rough)
33
rigid(adjective, strong, hard, tough, correct)
33
rough(adjective, mean, bad, strong, hard)
32
intense(adjective, clear, strong, cool, great)
32
burdensome(adjective, hard, tough, rough)
31
sharp(adjective, mean, strong, hard, cool)
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APASmart Define. (2016). severe thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/severe/thesaurus/synonyms
ChicagoSmart Define. 2016. "severe thesaurus" https://smartdefine.org/severe/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, severe thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/severe/thesaurus/synonyms>.
MLASmart Define. "severe thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/severe/thesaurus/synonyms>