76 entries under hard topic. ×

1
jelled(verb, adjective, set, tough)
1
loud(adjective, sharp, bright, high)
1
massed(adjective, strong, substantial, compact)
1
rank(sharp, high, dense, profuse)
1
rocklike(adjective, strong, firm, substantial)
1
sharp(adjective, strong, great, severe)
1
sound(adjective, strong, tough, fit)
1
sturdy(adjective, strong, tough, solid)
1
tight(adjective, strong, full, substantial)
1
tough(adjective, set, strong, firm)
0
adamantine(adjective, set, strong, firm)
0
brick wall(expression, adjective, strong, substantial)
0
callous(adjective, set, strong, firm)
0
dimensional(adjective, strong, substantial, compact)
0
fine-grained(tough, solid, rigid, inflexible)
0
frozen(adjective, compact, dense, rock-hard)
0
hard-bitten
0
hard-handed(adjective, set, strong, compact)
0
hard as nails(expression, adjective, idiom, set, strong)
0
hulk(adjective, strong, substantial, compact)
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APASmart Define. (2015). concentrated thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/concentrated/thesaurus/synonyms
ChicagoSmart Define. 2015. "concentrated thesaurus" https://smartdefine.org/concentrated/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, concentrated thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/concentrated/thesaurus/synonyms>.
MLASmart Define. "concentrated thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/concentrated/thesaurus/synonyms>