Credibility means we are believable. That others have found value in us, enough to say “Hey, we trust them. They know their stuff.”
But credible feels sort of average, safe, normal, a bland vanillin.
What doesn’t feel average is incredible – by definition the opposite of credible.
Incredible is impossible to believe, immeasurable, fireworks and blows credible out of any body of water.
If you had to choose, wouldn’t you choose incredible?