foreboding

nouns

a feeling of evil to come
"a steadily escalating sense of foreboding"; "the lawyer had a presentiment that the judge would dismiss the case"
boding, foreboding, premonition, presentiment
is derived from
forebode
an unfavorable omen
foreboding
is derived from
forebode
is a type of (narrower)
a sign of something about to happen
"he looked for an omen before going into battle"
omen, portent, presage, prodigy, prognostic, prognostication

adjectives

ominously prophetic
fateful, foreboding, portentous