That word, you know the one

 Unedifying! 

That was the word I was struggling to find to use in my last post. I'm glad to have finally had it rise to the front of the brain, as it was really bugging me. 

It's difficult to google for "that word, you know, the one that starts with un or is it in?" and the thesaurus wasn't helpful.

Maybe it's perimenopause. 

I am very pleased to have located my lost word, however. Did not expect it to take 3 days.