portentous.
Of momentous or ominous significance.
Meaning & usage
Of momentous or ominous significance.
Ominously prophetic.
Puffed up with vanity.
Where this word comes from
Of multiple origins: * Borrowed from Latin portentōsus, from portentus (“predicted”) + -ōsus. Compare earlier portentuous (via Middle English from Latin portentuōsus). By surface analysis, portent + -ous. * Borrowed from French portentueux
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.