Synonyms|509Antonyms|222|Broader|7Narrower|0Related|667

79 entries under substantial topic. ×

1
sedate(dull, quiet, big, heavy)
1
significant(big, heavy, valuable, vital)
1
sober(dull, quiet, big, heavy)
1
solid(adjective, big, heavy, large)
1
somber(dull, quiet, big, heavy)
1
something(big, significant, valuable, vital)
1
standout(big, significant, valuable, vital)
1
stout(adjective, big, heavy, awkward)
1
urgent(big, significant, valuable, vital)
1
vital(big, significant, valuable, imperative)
0
big deal(expression, big, heavy)
0
chief(big, significant, valuable, vital)
0
consequential(big, heavy)
0
exceptional(big, significant, valuable, vital)
0
forcible(big, heavy)
0
life and death(expression, idiom, big, heavy)
0
portentous(big, heavy)
0
underlined(big, heavy)
0
valuable(big, significant, vital, imperative)
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ChicagoSmart Define. 2015. "ponderous thesaurus" https://smartdefine.org/ponderous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, ponderous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/ponderous/thesaurus/synonyms>.
MLASmart Define. "ponderous thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/ponderous/thesaurus/synonyms>