something that is shocking, upsetting, or ridiculous because it is not what it is supposed to be

“It is a travesty and a tragedy that so many people would be denied the right to vote.”

“The investigation into the causes of the accident was a complete travesty. [=sham]”

“The trial was a travesty of justice.”

https://www.britannica.com/dictionary/travesty

On to the differences between tragedy and travesty:

> A “tragedy” is of course a dreadful event or disaster that results in sadness, injury or destruction. While a “travesty” is more of a distorted or cheap imitation of something – often applied to the debasement of something held high, such as justice, rules, ideals and so on.

https://www.writerscentre.com.au/blog/qa-tragedy-vs-travesty...