Synonyms|455Antonyms|60|Broader|12Narrower|1Related|455

47 entries under serious topic. ×

2
relentless(adjective, close, strong, hard, tough)
2
rough(adjective, strong, hard, tough, severe)
2
stiff-necked(adjective, strong, hard, tough, severe)
2
tough(adjective, strong, hard, severe, harsh)
2
unbending(adjective, close, strong, hard, tough)
2
unsparing(adjective, close, strong, hard, tough)
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
firm(adjective, strong, hard, tough, severe)
1
flinty(adjective, close, strong, hard, tough)
1
forbidding(adjective, close, strong, hard, tough)
1
frowning(adjective, strong, hard, tough, severe)
1
hard-boiled(adjective, strong, hard, tough, severe)
1
hard-core(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)
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APASmart Define. (2015). astringent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/astringent/thesaurus/synonyms
ChicagoSmart Define. 2015. "astringent thesaurus" https://smartdefine.org/astringent/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, astringent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/astringent/thesaurus/synonyms>.
MLASmart Define. "astringent thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/astringent/thesaurus/synonyms>