신빙성이 · 신빙성을
credibility, reliability
Example
그 기사는 출처가 불분명해서 신빙성이 떨어져요.
That article's source is unclear, so it lacks credibility.
Word parts
신 trust+빙 rely+성 quality
Literally 'the quality of being trustworthy and reliable'.
Good to know
Common pattern: 신빙성이 있다 / 없다 / 떨어지다.
Related words