exorbitant UK /ɪɡˈzɔːbɪtənt/US /ɪɡˈzoɹbətənt/ adjective1 •Exceeding proper limits; excessive or unduly high; extravagant.It’s a nice car, but they are charging an exorbitant price for it.You also have to pay exorbitant interest if you have credit card debt. formsmore exorbitant · most exorbitant