| A | B |
| incredulous | skeptical or doubtful |
| credible | offering reasonable grounds to be believed |
| incredible | too extraordinary to be believed |
| accreditation | to give official approval of |
| credentials | certification or badge giving you title to credit |
| credence | mental acceptance or credibility |
| credit | giving money with the expectation of future payment |
| discredit | disprove; make unbelievable |
| creed | mission statement |
| credulous | gullible; easily convinced to believe |