Synonyms of 'unseen'
I can now accept that there are unseen forces at work.
playing computer games against unseen opponents
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He was filmed with a concealed camera.
The pictures had obviously been taken by a hidden camera.
If you say that you feel invisible, you are complaining that you are being ignored by other people. If you say that a particular problem or situation is invisible, you are complaining that it is not being considered or dealt with.
The problems of the poor are largely invisible.
Thesaurus for unseen from the Collins English Thesaurus
If you describe something as unseen , you mean that it has not been seen for a long time.