Comment by hamburglar

I once spent a little time writing code to find the longest possible boggle word and found there were a few candidates. Interesting things I noted that weren’t entirely obvious: the longest word is actually 17 characters, not 16, because of the “Qu” side, and there are actually lots of words that are impossible, because for example there is only one J and only one B and they are on the same die.

I don’t remember all the longest words but sesquicentennials was one of them.