What is the connotation of the word "unexploited"?

Question

I want to used a word that means "not being used", but I'm having no luck finding one. Here are my sentences:

The date on the calendar is current, but has had no seminars scheduled since September of 2005, and has none scheduled within the next 10 years. It appears to be unexploited, either due to a lack of seminars being scheduled, or a lack of input of scheduled seminars.

Does unexploited work, or do you have better thoughts? Thanks!

Additional Details

Copy and paste your answers in this question. I asked it twice, so you might as well get twice as many points.

griff boy G: PERFECT! Thank you sooo much.

Answer 1

Best Answer - Chosen by Asker

"neglected" might be better

Asker's Rating:

Asker's Comment:

Thanks for your help! (If you want 10 more points, go to my other open question... No one has answered it yet.)