Synonyms of premonitions

1 Syllable
hunch, winds, sign
2 Syllables
warning, omen, idea, portent, feeling, vibes
3 Syllables
presage, vibrations, prenotion, worriment, misgiving, suspicion, intuition
4 Syllables
forewarning, presentiment, apprehension, foreboding
6 Syllables
apprehensiveness