Definition

This word describes something that requires a lot of money to buy or maintain, and it is the most expensive compared to others.

Example

The costliest painting in the gallery was sold for millions of dollars.

Comparatives & Superlatives

Conversation

Did you hear about that new restaurant downtown?

Yeah, I heard it's one of the costliest places to eat in the city.

I can't believe people spend so much on dinner.

I know, but some say the experience is worth every penny!

Synonyms & Antonyms

Root Explanation

Costliest → It is formed from "cost" (from Old French *coste*, meaning expense or price) and the superlative suffix "-liest" (meaning most). The word "costliest" means the most expensive or having the highest price.

Memory Tip

Think of the word 'cost' which refers to an expense, and remember that 'costliest' means the most expensive.

Visually Confused Words