252 entries under tough topic. ×

2
concrete(adjective, set, hard, solid)
2
crackerjack(quality, superior, best, principal)
2
durable(adjective, strong, sound, solid)
2
enduring(adjective, strong, great, sound)
2
fab(quality, superior, unusual, exceptional)
2
forcible(adjective, strong, sound, solid)
2
hardy(adjective, person, body, strong, sound)
2
hearty(adjective, person, body, strong, sound)
2
heavy-duty(adjective, strong, sound, solid)
2
intricate(adjective, severe, difficult, awkward)
2
iron(adjective, strong, hard, inflexible)
2
jelled(adjective, set, hard, solid)
2
knotty(adjective, hard, severe, rough)
2
main(quality, superior, significant, prime)
2
nonporous(hard, solid, rigid, inflexible)
2
potent(adjective, strong, sound, severe)
2
rigorous(adjective, strong, hard, severe)
2
robust(adjective, person, body, strong, hard)
2
rude(adjective, grim, vulgarity, demanding)
2
set(adjective, strong, hard, solid)
10 years ago|53k views|share |citing 
APASmart Define. (2016). heavy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms
ChicagoSmart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, heavy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>.
MLASmart Define. "heavy thesaurus" 25 January 2016. Web. 29 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms>