Definition of “expensive” - Learner’s Dictionary

expensive

adjective us uk /ɪkˈspensɪv/
horrendously expensivePlastic bottles are less expensive to produce.A large house is very expensive to maintain.The tickets were expensive, but the kids really enjoyed it.It's one of the most expensive hotels in Italy.

A1 costing a lot of money:

expensive jewellery
[ + to do sth ] It's too expensive to go out every night.
→ Opposite inexpensive
expensively adverb

expensively dressed

(Definition of “expensive” from the Cambridge Learner's Dictionary © Cambridge University Press)