priceless

Definitions

So precious that its value cannot be determined.

Extremely amusing or ridiculous.

Examples

The look on her face when she opened the gift was absolutely priceless.

He possesses a priceless collection of ancient artifacts from the Ming Dynasty.

Spending quality time with my grandparents is a priceless experience that I cherish deeply.

Synonyms

invaluable inestimable precious irreplaceable treasured beyond price costly

Antonyms

worthless valueless cheap inexpensive affordable trashy common