Synonyms|367Antonyms|96|Broader|9Narrower|15Related|697
1
of evil portent(expression, idiom)
1
of great moment(adjective, importance, valuable, main, notable)
1
of importance(adjective, importance, valuable, main, notable)
1
on the map(adjective, importance, valuable, main, notable)
1
papal
1
perilous
1
portending
1
powerful
1
precautional
1
precautionary
1
precursive
1
precursory
1
predictive
1
prodromal
1
prodromic
1
profound
1
prognostic
1
prophetical
1
provocative
1
scowling
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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>