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

77 entries under strong topic. ×

3
dense(adjective, hard, tough, solid)
3
immovable(adjective, hard, tough, sturdy)
3
inexorable(adjective, close, hard, tough)
3
rough(adjective, hard, tough, serious)
3
rugged(adjective, hard, tough, harsh)
2
austere(adjective, hard, tough, severe)
2
forbidding(adjective, close, hard, tough)
2
hard-core(adjective, hard, tough, severe)
2
hard as nails(expression, adjective, idiom, hard)
2
implacable(adjective, hard, tough, severe)
2
leathery(adjective, hard, solid, stiff)
2
resistant(adjective, hard, solid, stiff)
2
steeled(adjective, hard, solid, stiff)
2
strict(adjective, hard, tough, severe)
2
sturdy(adjective, hard, tough, solid)
2
unsparing(adjective, close, hard, tough)
1
astringent(adjective, close, hard, tough)
1
authoritarian(adjective, hard, tough, severe)
1
bitter(adjective, hard, tough, evil)
1
bullheaded(adjective, hard, tough, severe)
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ChicagoSmart Define. 2015. "flinty thesaurus" https://smartdefine.org/flinty/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, flinty thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/flinty/thesaurus/synonyms>.
MLASmart Define. "flinty thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/flinty/thesaurus/synonyms>