ungraspable

adj

1. (not-comparable)Not able to be reached or grasped.

   “It is the image of the ungraspable phantom of life; and this is the key to it all.”

2. (not-comparable)Not able to be remembered or comprehended.

   “Before, somewhere and time ungraspable, blurred and beset with bewildering details, she had lain alone in bed, listening to gladsome bird voices, mingled with a sense of distressed humanity.”

   “Voldemorting is the anti-SEO, the anti-keyword, and the anti-hashtag. It transforms your subject from a single mass into an ungraspable swarm.”