The appearance of truth.
John's wet swim trunks lent verisimilitude to his claim that he'd been swimming all afternoon.
the appearance or semblance of truth; likelihood; probability: The play lacked verisimilitude.
The verisimilitude of this statement is false.
the appearance of being true or real
Satya's brown skin lent verisimilitude to the claim that she is foreign.
A word used by pretentious douchebags on internet forums in a vain attempt to cover up the fact they just don't like something, and can't give an intelligent reason as to why not.
It may also be used by students writing critical papers in English Literature classes for much the same purpose, with the double bonus in the hope that dropping a big Latin-based word will get them a higher mark.
I noticed my buddy dropped "verisimilitude" in the opening paragraph, and didn't mention realism (or the appearance thereof) anywhere else. I told him you have to explain what this big word means, or your prof's gonna take off a ton of points.