127 entries under hard topic. ×

2
adamantine(adjective, strong, tough, sturdy)
2
bitter(adjective, strong, tough, severe)
2
blubbery(deep, fat, broad, bulky)
2
compacted(adjective, strong, substantial, compact)
2
concrete(adjective, set, tough, solid)
2
consolidated(adjective, set, solid, deep)
2
impermeable(solid, rigid)
2
iron(adjective, strong, tough, inflexible)
2
jelled(adjective, set, tough, solid)
2
knotty(adjective, tough, severe, rough)
2
material(adjective, strong, big, important)
2
mean(adjective, severe, rough, difficult)
2
nonporous(tough, solid, rigid, inflexible)
2
rigorous(adjective, strong, tough, severe)
2
robust(adjective, person, body, strong)
2
set(adjective, strong, tough, solid)
2
stable(adjective, strong, sound, tough)
2
stubby(adjective, short, deep, fat)
1
austere(adjective, quiet, strong, tough)
1
congealed(adjective, set, tough, solid)
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APASmart Define. (2016). heavy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms
ChicagoSmart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, heavy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>.
MLASmart Define. "heavy thesaurus" 25 January 2016. Web. 25 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms>