155 entries under important topic. ×

10
substantial(adjective, give, strong, hard, great)
9
operose(adjective, tough, severe, rough, difficult)
9
solid(adjective, person, set, body, strong)
9
sound(adjective, strong, hard, tough, solid)
7
considerable(adjective, big, significant, substantial)
7
firm(noun, adjective, set, strong, hard)
7
momentous(adjective, great, tough, severe, big)
7
strenuous(adjective, dull, tough, severe, rough)
6
crucial(adjective, great, tough, severe, extraordinary)
6
sturdy(adjective, person, body, strong, hard)
5
critical(adjective, great, harsh, extraordinary, big)
5
grand(outstanding, prominent, greatness, distinguished)
5
significant(adjective, great, tough, severe, big)
4
cool(adjective, excellent, unusual, exceptional)
4
earnest(adjective, dull, quiet, big)
4
extraordinary(adjective, great, solid, informal, unusual)
4
ugly(adjective, calm, bad, tough, severe)
3
boss(adjective, unusual, strange, exceptional)
3
hot(adjective, quality, great, tough, warm)
3
meaningful(adjective, dull, quiet, tough, severe)
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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>