6
menacing
6
negative(adjective, inauspicious)
6
portentous
5
disapproving
5
foreboding
5
ill-omened
5
ill-starred
5
inimical
5
threatening
5
uncomplimentary
5
wretched
4
baleful
4
contrary
4
cringeworthy(adjective, terrible, dirty, badly, scary)
4
damaging
4
disadvantageous
4
fateful
4
ill
4
ill-fated
4
inconvenient
11 years ago|8.3k views|share |citing 
APASmart Define. (2015). unfavourable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unfavourable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfavourable thesaurus" https://smartdefine.org/unfavourable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unfavourable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unfavourable/thesaurus/synonyms>.
MLASmart Define. "unfavourable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/unfavourable/thesaurus/synonyms>