Answer: costly

AnswerCrossword Clue
COSTLYAt a premium
costlyexpensive
costlyresulting in great detriment
costlycosting much; expensive; high in price
costlyresulting in great expense
COSTLYLike a Rolls, say
COSTLYExorbitant
COSTLYLike a mistake that's going to hurt you
COSTLYHigh-priced
COSTLYExpensive
COSTLYDear
COSTLYDear.
COSTLYSumptuous.
COSTLYBig-ticket
COSTLYBudget-busting
COSTLYDear, in a way
COSTLYQuite steep