costly
Translation
costly, expensive, high-priced
Examples
This is a very costly watch.
This is a very costly watch.
The project was too costly to continue.
The project was too costly to continue.
It was a costly mistake.
It was a costly mistake.
Grammar Patterns
((a/an)) ~ mistake/item/project to be costly It was a costly mistake.
Similar Words
Synonyms: expensive, pricey; Antonyms: cheap, inexpensive
Etymology
From the noun 'cost' plus the adjective-forming suffix '-ly'.
Memory Tips
It refers not just to money, but also to negative consequences, like a 'costly mistake'.