truthiness

Truthfulness.

Truly may it be said, that her valuable qualities have been sanctified ; whilst her play of character has not been lost, but has been rendered more interesting than before. Every one who knows her is aware of her truthiness, and appreciates her kindness ; […]

Superficial or asserted truthfulness, without recourse to evidence.

'Cause you're looking at a straight-shooter, America. I tell it like it is. I calls 'em like I sees 'em. I will speak to you in plain simple English. And that brings us to tonight's word: truthiness.

Even in the halls of Congress, economic arguments against immigration are losing their aura of truthiness, so pro-enforcement types are focusing on national security.

The property of being truthy, i.e. evaluating to true in a Boolean context.

Usually, when you are receiving a Boolean value, you are most interested in checking its truthiness rather than its type.