
Exorbitant
Negative Emotion
 Used to express disapproval or frustration about high costs. 
I was shocked by the exorbitant charges for the hotel room.
 Unreasonable Costs
 Implies that the price or amount is not just high, but unreasonably so. 
The exorbitant cost of college tuition is a major concern.
 Powerful Adjective
 'Exorbitant' strongly highlights the extent to which costs exceed what is fair or appropriate. 
Renting that luxury car is exorbitant and not worth it.