these words are easy

1

accredit

a to recognize as having met official standards B to ascribe or attribute to C to authorize

Credence

A. Acceptance as true or valid B. Claim to acceptance trustworthiness

Credential

A. Something that entitles a person to confidence or authority B a letter or other written evidence of a persons qualifications or status

4 Credibility

A. the quality of deserving confidence plausibility reliability. B readiness to believe.

Creditable

Deserving commendation / praiseworthy.

Credulous

Tending to believe too readily easily deceived gullible essentially a synonym for naive.

creed

Any statement or system of belief principles or opinions that guides a persons actions.

discredit

A. to cast doubt on destroy belief faith or trust in. B To damage in reputation disgrace C. to refuse to believe in A doubt lack of belief or trust B loss or damage to ones reputation

incredible

Too extraordinary to be possible B. astonishing amazing.

Miscreant

A person who behaves badly or criminally villain