4
catastrophic(adjective, adverse, inauspicious)
4
dire(threatening, unfortunate, menacing, unfavorable, intimidating)
4
inconvenient(adjective, unpleasant, negative, awkward, improper)
4
inexpedient(adjective, negative, improper, inappropriate, unfortunate)
4
intrusive(adjective, untimeliness)
4
lowering
4
opposing(adjective, hostile, unfriendly, antagonistic, contrary)
4
star-crossed(adjective, bad, poor, unpleasant, awkward)
4
unbefitting(adjective, untimeliness)
4
unhappy(adjective, bad, poor, sad, awkward)
4
unlikely
4
unsuitable(adjective, bad, poor, awkward, inappropriate)
4
wrong(adjective, corrupt, negative, immoral, improper)
3
antipathetic(adjective, adverse)
3
bad to the bone
3
hard(adjective, angry, adverse, offended, indignant)
3
ill-advised(adjective, negative, disapproving, uncomplimentary)
3
ill-timed(adjective, untimeliness)
3
mal a propos(expression, idiom, untimeliness)
3
malapropos(adjective, negative, improper, inappropriate, unfortunate)
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APASmart Define. (2015). unpropitious thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unpropitious/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpropitious thesaurus" https://smartdefine.org/unpropitious/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unpropitious thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unpropitious/thesaurus/synonyms>.
MLASmart Define. "unpropitious thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/unpropitious/thesaurus/synonyms>