Synonyms|266Antonyms|6|Broader|1Narrower|4Related|4

55 entries under severe topic. ×

1
grim(adjective, strong, hard, tough)
1
hang-tough(adjective, strong, hard, tough)
1
hard(adjective, strong, tough, harsh)
1
hard-boiled(adjective, strong, hard, tough)
1
hard-core(adjective, strong, hard, tough)
1
hard-line(adjective, strong, hard, tough)
1
hard-nosed(adjective, strong, hard, tough)
1
hard-shell(adjective, strong, hard, tough)
1
hardheaded(adjective, strong, hard, tough)
1
harsh(adjective, strong, hard, tough)
1
implacable(adjective, strong, hard, tough)
1
inexorable(adjective, strong, hard, tough)
1
inflexible(adjective, strong, hard, tough)
1
iron-fisted(adjective, harsh, stiff, rigid)
1
ironclad(adjective, harsh, stiff, rigid)
1
mortified(adjective, strong, hard, tough)
1
mulish(adjective, strong, hard, tough)
1
poignant(adjective, harsh, stiff, rigid)
1
powerful(adjective, harsh, stiff, rigid)
1
relentless(adjective, strong, hard, tough)
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APASmart Define. (2013). by the book thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/by_the_book/thesaurus/synonyms
ChicagoSmart Define. 2013. "by the book thesaurus" https://smartdefine.org/by_the_book/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2013, by the book thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/by_the_book/thesaurus/synonyms>.
MLASmart Define. "by the book thesaurus" 19 May 2013. Web. 30 September 2026. <https://smartdefine.org/by_the_book/thesaurus/synonyms>