Amazingly, still works after years of not being updated. And also amazingly, one of the only useful thesaurus plugins for wordpress. You would think a platform devoted to writing and blogging would have a ton of different options available.
Only complaints are that entering a word that isn't found results in the plugin searching endlessly, and that hitting "enter" to search when the focus is on the widget doesn't result in a search and instead usually results in your post being updated and reloaded. You have to manually hit the "search" button on the widget for it to work.
Other than that, solid. It would be great if someone in the future could make a plugin akin to Microsoft Word where you can right-click on a word and have instant access to a list of synonyms in the pop-up menu.