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

56 entries under strong topic. ×

2
unsparing(adjective, close, hard, tough)
1
bullheaded(adjective, hard, tough, severe)
1
by the book(expression, adjective, idiom, hard)
1
disciplinary(adjective, hard, tough, severe)
1
dyed-in-the-wool(adjective, hard, tough, severe)
1
firm(adjective, hard, tough, severe)
1
flinty(adjective, close, hard, tough)
1
forbidding(adjective, close, hard, tough)
1
frowning(adjective, hard, tough, severe)
1
hard-boiled(adjective, hard, tough, severe)
1
hard-core(adjective, hard, tough, severe)
1
hard-line(adjective, hard, tough, severe)
1
hard-nosed(adjective, close, hard, tough)
1
hard-shell(adjective, hard, tough, severe)
1
hardheaded(adjective, hard, tough, severe)
1
implacable(adjective, hard, tough, severe)
1
inexorable(adjective, close, hard, tough)
1
mulish(adjective, hard, tough, severe)
1
robust(adjective, hard, tough, sturdy)
1
serious(adjective, close, hard, tough)
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ChicagoSmart Define. 2015. "astringent thesaurus" https://smartdefine.org/astringent/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, astringent thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/astringent/thesaurus/synonyms>.
MLASmart Define. "astringent thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/astringent/thesaurus/synonyms>