Definition of Disimprove
Dis`im`prove´
v. t. 1. To make worse; – the opposite of improve.
v. i. 1. To grow worse; to deteriorate.
And here was me thinking my wife had made up this word because I never hear anyone else use that word. Sorry Jess. 
What unusual words do the people in your life use?
I call T a divot. She’s gotten to like it though, I’ll need to come up with something else.
adam
Elly uses plenty but they are unprintable!
Herself uses quite a few as well but I don’t know what they mean as it’s all in Polish.
I’m probably better off
Worser.
Same thing, the Better Half was using it, I said it’s not a proper word. Even now, as I’m typing, the spell checker is agreeing with me. Check the Webster dictionary and it’s there. Archaic English, but it’s there. Complete with a quote from Shakespeare.
“Nice holiday but the place was very touristic.”
Laughed my ass off at the time, then got hit on the head with the dictionary.
Just because it is a word doesn’t mean it should be used