Pleased to be of help .I think I will go with Grates .I was thinking along the lines of unappreciative being something that doesn't grow, like your money not appreciating due to low interest rates .
Just one to do do then and I have Googled,anagrammed and read dictionaries until I am blue in the face .It's probably so simple but I can't see it !
I will pop back here . You all seem much more friendly and happy to help than another site I looked at .Good luck .