incredible

UK: /ɪnˈkrɛdɪb^əl/ US: /ɪnˈkrɛdəbəl/ ,(in kred′ə bəl)

WordReference Random House Learner's Dictionary of American English © 2025

in•cred•i•ble /ɪnˈkrɛdəbəl/   adj. 

1. impossible or hard to believe:
   We got there with incredible speed.
   [it + be + ~ + that clause]
   It is incredible that we won the championship.

in•cred•i•bil•i•ty /ɪnˌkrɛdəˈbɪlɪti/  n. [uncountable]
in•cred•i•bly, adv.: 

incredibly huge.

See -cred-.

WordReference Random House Unabridged Dictionary of American English © 2025

in•cred•i•ble  (in kred′ə bəl), adj. 

1. so extraordinary as to seem impossible:
   incredible speed.
2. not credible;
   hard to believe;
   unbelievable:
   The plot of the book is incredible.

• Latin incrēdibilis. See in-³, credible
• late Middle English 1375–1425

in•cred′i•bil′i•ty, in•cred′i•ble•ness, n. 
in•cred′i•bly, adv. 
Synonyms

• 2. farfetched, astonishing, preposterous.

Collins Concise English Dictionary © HarperCollins Publishers::

incredible / ɪnˈkrɛdəb^əl/ adjective

1. beyond belief or understanding; unbelievable
2. marvellous; amazing

inˌcrediˈbility, inˈcredibleness noun

inˈcredibly adverb