invisible
US /ɪnˈvɪz.ə.bəl/
UK /ɪnˈvɪz.ə.bəl/

1.
invisibile
impossible or nearly impossible to see
:
•
The tiny particles were almost invisible to the naked eye.
Le minuscole particelle erano quasi invisibili ad occhio nudo.
•
He wore a cloak that made him invisible.
Indossava un mantello che lo rendeva invisibile.
2.
impercettibile, nascosto
not apparent or obvious; hidden from view or knowledge
:
•
There was an invisible tension in the room.
C'era una tensione invisibile nella stanza.
•
His influence on the decision was invisible but significant.
La sua influenza sulla decisione era invisibile ma significativa.