The phrase "unattractive option" means that a choice or decision is not appealing or desirable. It implies that the option lacks positive qualities or advantages and is therefore not preferred. Full definition
This comes as natural gas has captured an increasing share of the electricity market, while prices for renewable energy sources like wind and solar continue to drop, making coal an increasingly unattractive option for energy producers. (yahoo.com)
It may be the best of a range of unattractive options. (breakingviews.com)
I think if Lemar ends up at Liverpool then it confirms, if there were any doubt, our club is either an incredibly unattractive option for any player worth his salts to consider, that we are inept at negotiating — or actually both. (justarsenal.com)