29 entries under substantial topic. ×

9
crucial(adjective, big, heavy, significant)
5
critical(adjective, bad, big, heavy, significant)
2
heavy(bad, big, sober, serious)
2
sober(big, heavy, serious, somber)
2
somber(big, heavy, sober, serious)
0
big deal(expression, big, heavy)
0
bulky(big, heavy)
0
burdensome(big, heavy)
0
cumbersome(big, heavy)
0
cumbrous(big, heavy)
0
dense(big, heavy)
0
fat(big, heavy)
0
fleshy(big, heavy)
0
forcible(big, heavy)
0
heavyweight(big, heavy)
0
hefty(big, heavy)
0
life and death(expression, idiom, big, heavy)
0
massive(big, heavy)
0
no-nonsense(big, heavy, sober, serious)
0
obese(big, heavy)
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APASmart Define. (2015). portentous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/portentous/thesaurus/synonyms
ChicagoSmart Define. 2015. "portentous thesaurus" https://smartdefine.org/portentous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, portentous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/portentous/thesaurus/synonyms>.
MLASmart Define. "portentous thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/portentous/thesaurus/synonyms>