Creditable is an adjective that means worthy of belief.
Although the word ‘credit’ is used in a wide variety of ways, its basis is in the Latin word ‘credere’ (cruh DARE ay) means ‘trust’ or ‘believe.’ When something has been deemed creditable, that means we can believe and trust what has been said about it. Example:
The first lawyer I approached for my case, didn’t exactly seem like a creditable fellow. Sure, there were plenty of glowing words said of him on his website, but I later discovered that all those glowing reviews came from his mother.