advantageous Antonyms

disadvantageous unfavorable sisyphean seamy ruinous ruffling risky recusant prejudicial poor poisonous pointless poignant sixpenny slaughterous unconscionable unacceptable twopenny troublesome traumatic tragic toxic threepenny subversionary subsequent slighting pitiless piteous nocuous nocent negatively negative needing mortal morbific misspent mephitical menacing malignant noxious nullifying objectionable pestilent pestiferous perverse pernicious perilous periculous pejorative ominous