142 entries under severe topic. ×

2
knotty(adjective, hard, tough, rough)
2
mean(adjective, hard, rough, difficult)
2
menacing(adjective, bad, risky, weighty)
2
potent(adjective, strong, sound, tough)
2
rigorous(adjective, strong, hard, tough)
2
steep(adjective, stringent, drastic)
2
tempestuous(adjective, calm, difficult)
2
urgent(adjective, tough, informal, big)
2
vigorous(adjective, strong, sound, tough)
1
acroamatic(adjective, obscure, difficult, complex)
1
ambitious(tough, painful, problematic, trying)
1
austere(adjective, quiet, strong, hard, tough)
1
backbreaker(tough, painful, problematic, trying)
1
challenging(adjective, tough, difficult, awkward)
1
difficile(adjective, tough, rough, difficult)
1
easier said than done(expression, tough, painful, problematic)
1
extravagant(adjective, stringent, drastic)
1
far-reaching(big, significant, substantial, valuable)
1
galling(tough, harsh, painful, problematic)
1
grim(adjective, dull, quiet, strong, hard)
10 years ago|53k views|share |citing 
APASmart Define. (2016). heavy thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms
ChicagoSmart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, heavy thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>.
MLASmart Define. "heavy thesaurus" 25 January 2016. Web. 26 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms>