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portentous (adj.)
"of the nature of a portent, ominous," 1540s, from Latin portentosus "monstrous, marvelous, threatening," from portentem "portent," from portendere (see portend). Sometimes portentious, by influence of pretentious. Related: Portentously.
updated on September 04, 2020
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Definitions of portentous from WordNet
Dictionary entries near portentous
portcullis
Porte
porte-cochere
portend
portent
portentous
porter
porter-house
portfolio
porthole
portico