unbelievable

adjective
UK /ˌʌnbɪˈliːvəbl/
US /ˌʌnbɪˈliːvəbl/

So amazing or strange that it is hard to think it is real.

The magician did an unbelievable trick that made the whole crowd gasp.

SYNONYMS

incredibleamazingastonishingextraordinaryimplausible

RELATED WORDS

unbelievablydisbeliefincreduloussurprisingfantastic

OTHER MEANINGS

2. Very difficult to believe because it seems untrue or dishonest.

He told an unbelievable story about meeting a dragon on the way to school.

3. Extremely good or impressive, often used for emphasis.

The view from the top of the mountain was unbelievable.

4. So bad or shocking that it is hard to accept.

The mess in the kitchen was unbelievable after the party.