真しん実じつ性せい

noun

truthfulness; authenticity; credibility

Refers to the quality of being true, genuine, or faithful to facts. Often used in formal or evaluative contexts such as assessing statements, documents, or claims.

• この証しょう言げんの真しん実じつ性せいを疑うたがう理り由ゆうはない。

  There is no reason to doubt the truthfulness of this testimony.

• 文ぶん書しょの真しん実じつ性せいを確かく認にんするために専せん門もん家かに依い頼らいした。

  We asked an expert to verify the authenticity of the document.