Her trip made her an 'instant' expert on the region. [=it made her believe that she knew everything about the region]
They took an 'instant' dislike to each other. [=they immediately disliked each other]
The Internet provides 'instant' access to an enormous amount of information.
(..) An opposition spokesman has categorically denied- I tell you, infamous powers are at work. The instant you assign me to a case, the underworld hears about it, and I am set upon. Cato is in hospital. They nearly blew his little yellow skin off. It is amazing that I am still alive. (..)1975 The Return of the Pink Panther