Expensive ...
Dear, costly, pricey, valuable, extortionate, priceless.
costly
Lavish or costly.
I love this shirt! But I don't think I can afford it; it is very costly.
Precious ,
valuable
"Ancient" is another word for very old.
another word for very large
An afternoon out is the hint word for another word for a very special afternoon. An afternoon date is another word for the same.
Another word for expensive is "costly." Other synonyms include "pricey" and "lavish," each conveying a sense of high cost or value.
Another word for 'very bad' is, "Heinous" (HAY nuss). Another word is, "Dire".
Another word for slum or very poor area is "shantytown" or "ghetto."