in·vis·i·ble 
/ɪnˈvɪzəbəl/ adjective
/ɪnˈvɪzəbəl/ adjective 1 : impossible to see : not visible
▪ Sound waves are invisible. ▪ a thriller about an invisible man ▪ With the telescope we can see details of the planet's surface that are ordinarily invisible. ▪ It felt like I was invisible at the party. [=no one was paying any attention to me at the party] ▪ She feels as if her success is being blocked by an invisible barrier. ▪ Homelessness is no longer an invisible problem for this city. ▪ a letter written in invisible ink [=ink that can only be seen when it is specially treated in some way] 2 chiefly Brit, finance — used to describe money from foreign countries that is received from providing services (such as banking and tourism) rather than from selling products ▪ invisible earnings ▪ invisible exports
▪ Sound waves are invisible. ▪ a thriller about an invisible man ▪ With the telescope we can see details of the planet's surface that are ordinarily invisible. ▪ It felt like I was invisible at the party. [=no one was paying any attention to me at the party] ▪ She feels as if her success is being blocked by an invisible barrier. ▪ Homelessness is no longer an invisible problem for this city. ▪ a letter written in invisible ink [=ink that can only be seen when it is specially treated in some way]
— in·vis·i·bil·i·ty /ɪnˌvɪzəˈbɪləti/ noun [noncount]
/ɪnˌvɪzəˈbɪləti/ noun [noncount]— in·vis·i·bly /ɪnˈvɪzəbli/ adverb
▪ a hearing aid that fits invisibly in the ear
/ɪnˈvɪzəbli/ adverb ▪ a hearing aid that fits invisibly in the ear
