127 entries under hard topic. ×

50
strong(adjective, feature, characteristic, person, body)
24
massive(adjective, person, body, awkward)
21
serious(adjective, strong, great, tough)
21
thick(adjective, person, quality, body, strong)
19
hefty(adjective, person, dull, body, strong)
18
dense(adjective, person, dull, set, body)
15
severe(adjective, strong, tough, difficult)
13
laborious(adjective, dull, tough, severe)
11
tough(noun, adjective, good, person, dull)
10
broad(adjective, quality, great, big)
10
difficult(adjective, dull, tough, severe)
10
grueling(adjective, tough, severe, difficult)
10
impenetrable(adjective, set, tough, solid)
10
substantial(adjective, give, strong, great)
10
thickset(adjective, person, close, body)
9
backbreaking(adjective, difficult, harsh, cruel)
9
concentrated(adjective, set, strong, tough)
9
rough(noun, adjective, calm, strong)
9
solid(adjective, person, set, body, strong)
9
sound(adjective, strong, tough, solid)
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APASmart Define. (2016). heavy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms
ChicagoSmart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, heavy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>.
MLASmart Define. "heavy thesaurus" 25 January 2016. Web. 23 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms>