invisible
US /ɪnˈvɪz.ə.bəl/
UK /ɪnˈvɪz.ə.bəl/
1.
impossible or nearly impossible to see
:
•
The tiny particles were almost invisible to the naked eye.
•
He wore a cloak that made him invisible.
2.
not apparent or obvious; hidden from view or knowledge
:
•
There was an invisible tension in the room.
•
His influence on the decision was invisible but significant.