It’s a dictionary.
I used to use Dictionary.com, because it was the first reliable online dictionary I stumbled across and it had a nice thesaurus and etymology feature (citing Douglas Harper’s Online Etymology Dictionary).
And my Firefox could handle the damn pop-ups.
But the advertisements there have gotten flashier and flashier, and nowadays they make me dizzy. So…
Here’s a great little dictionary by Phil Crosby — clean as the Google homepage, with code designed to get your definition to you lightning quick. It’s called Ninjawords. (At first, I thought it was words about ninjas, but no. The dictionary is fast like a ninja, get it?)
Once you’re on the page, you can add it to that search bar at the top right of your monitor. Click over and try some of your favorites.
Desultory, perhaps? Ecdysiast? Bon mot?