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Want to find out what does the word portentous mean? We gathered all the possible definitions of the word portentous on our website. Our definition dictionary is updated all the time with new definitions and is ready to help you.

portentous

Part of speech: Adjective

Foreshadowing evil; dreadful.

Part of speech: Adverb

Portentously.

Part of speech: Noun

Portentousness.

Usage examples "portentous":