1. Not seen or perceived
   "unseen natural resources"
    
2. Unnoticed
   "unseen forces at work";
   - unobserved
    
3. Not anticipated
   "unseen problems";
   - unanticipated, unforeseen, unlooked-for, out of the blue

1. A belief that there is a realm controlled by a divine spirit
   "Many religions posit an unseen spiritual realm";
   - spiritual world, spiritual domain

1. To forget an image
   "I wish I could unsee that horrific accident"

Derived forms: unseens

See also: invisible, unexpected, unnoticed, unseeable

Type of: belief, bury, disremember [US, informal], forget

Encyclopedia: Unseen