A word used to describe someone who thinks too much or someone who has gone quiet and sat in the corner of the room staring at a blank spot on the wall for no reason. They are said to be "In insedelity" not "insedelic" etc.
The ability to resist advances by unwanted women, especially ones who are attractive but likely have diseases that cause swelling and/or itching.
Can also apply to women who can resist men.
1. Man that girl was trying really hard to get in my pants, but she was unaware of the fact that, despite her being a ten on the hotness chart, I was born inseducable.
2. Tyler is so cool, hot girls will try anything to get with him. I don't know how he resists, he must be inseducable.