advantageous Antonyms

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