disadvantageous

1. Involving or creating circumstances detrimental to success or effectiveness (synset 300065808)
   "a disadvantageous outcome"; "a well-known study from the 1970's showed that gender stereotyping placed women in a disadvantageous position"; "made an unfavorable impression"
   also:

   • inexpedient - not suitable or advisable
   • harmful - causing or capable of causing harm
   • inopportune - not opportune
   similar to: minus, negative - involving disadvantage or harm
   same as: unfavorable, unfavourable

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