4
forerun(verb, show, declare, lead, head)
4
foreshadower(noun, person, show, foresight, precursor)
4
hint(noun, feeling, light, sign, hunch)
4
hunch(noun, feeling, sign, indication, warning)
4
introduce(verb, open, present, lead, informal)
4
leader(noun, person, precursor)
4
precedent(noun, precursor)
4
prefigurement(noun, feeling, sign, hunch, foreboding)
4
proclaim(verb, show, declare, signal, announce)
4
prophesy(verb, call, promise, signify, predict)
4
scout(noun, verb, lead, head, anticipate)
4
threat(noun, feeling, sign, indication, warning)
4
trailblazer(noun, precursor)
4
warn(feeling, sign, hunch, premonition, presentiment)
3
bellwether
3
bird of ill omen(noun, sign, presage, portent, prognostication)
3
calculate(verb, feeling, sign, hunch, premonition)
3
caution(noun, mark, light, note, sign)
3
count on(verb, feeling, sign, hunch, premonition)
3
death knell(noun, feeling, sign, hunch, premonition)
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APASmart Define. (2015). harbinger thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/harbinger/thesaurus/synonyms
ChicagoSmart Define. 2015. "harbinger thesaurus" https://smartdefine.org/harbinger/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, harbinger thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/harbinger/thesaurus/synonyms>.
MLASmart Define. "harbinger thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/harbinger/thesaurus/synonyms>