Is truth absolute, or can things have a degree of truthiness?

verisimilitude (noun) vĕr″ə-sĭ-mĭl′ĭ-too͞d″, -tyoo͞d″

The quality of appearing to be true or real. synonym: truth.

Something that has the appearance of being true or real.

The quality or state of being verisimilar; the appearance of truth; probability; likelihood: as, the verisimilitude of a story.