Use the adjective premonitory to describe something that predicts something bad will happen, like a premonitory sneezing fit that comes before you come down with an awful cold.

The adjective premonitory is related to the Latin word praemonere, from prae, meaning “before,” and monere, meaning “warn.” The dark premonitory clouds that roll in before a storm can ruin your day at the beach, or the premonitory feeling that a new friend isn't trustworthy are warnings to pack up and get out before something disastrous happens.

Definitions of premonitory

adj warning of future misfortune

prophetic, prophetical
foretelling events as if by supernatural intervention

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