IPA: /ɪnˈkrɛdɪbəl/
KK: /ɪnˈkrɛdɪbəl/
Something that is very surprising or hard to believe, often because it is so amazing or extraordinary.
The magician performed an incredible trick that left everyone in awe.
Comparative: more incredible
Superlative: most incredible
Incredible → It is formed from "in-" (meaning not) and "credere" (meaning to believe). The word "incredible" means not able to be believed or extraordinary.
Think of something that is 'not' ('in-') able to be 'believed' ('credere') — that's why we call it incredible.