Synonyms|369Antonyms|90|Broader|0Narrower|0Related|365

43 entries under serious topic. ×

2
austere(adjective, strong, hard, tough, severe)
2
forbidding(adjective, close, strong, hard, tough)
2
hard-core(adjective, strong, hard, tough, severe)
2
strict(adjective, strong, hard, tough, severe)
2
unsparing(adjective, close, strong, hard, tough)
1
astringent(adjective, close, strong, hard, tough)
1
authoritarian(adjective, strong, hard, tough, severe)
1
bitter(adjective, strong, hard, tough, evil)
1
bullheaded(adjective, strong, hard, tough, severe)
1
by the book(expression, adjective, idiom, strong, hard)
1
disciplinary(adjective, strong, hard, tough, severe)
1
dyed-in-the-wool(adjective, strong, hard, tough, severe)
1
frowning(adjective, strong, hard, tough, severe)
1
hang-tough(adjective, strong, hard, tough, severe)
1
hard-boiled(adjective, strong, hard, tough, severe)
1
hard-line(adjective, strong, hard, tough, severe)
1
hard-nosed(adjective, close, strong, hard, tough)
1
hard-shell(adjective, strong, hard, tough, severe)
1
hardheaded(adjective, strong, hard, tough, severe)
1
mortified(adjective, strong, hard, tough, severe)
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APASmart Define. (2015). flinty thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/flinty/thesaurus/synonyms
ChicagoSmart Define. 2015. "flinty thesaurus" https://smartdefine.org/flinty/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, flinty thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/flinty/thesaurus/synonyms>.
MLASmart Define. "flinty thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/flinty/thesaurus/synonyms>