Prawns are expensive as they are not sold according to their quantity or weight.They are sold according to their size.So the bigger the prawn the higher the price!
Costly.
Dear,costly and high-priced are some of the synonyms for expensive.
Hello Maldives is expensive. Resorts are really costly.
Costly
Costing a lot ; expensive
Expensive ...
costly
Lavish or costly.
Expensive. Dear. Pricey.
Yes, costly is an adjective. E.g. It was a costly mistake. (One that was expensive to fix, or that led to other bad consequences.)
No, it is not (despite the LY ending). The word costly is an adjective (expensive, high-priced).