"Instantaneous" Natural Recordings by Native Speakers
Instantaneous refers to something that happens or is acted upon immediately or at once, without any delay or intervening time. It can also describe a moment in time when a particular condition or situation exists, lasting only for a very brief period.
Instalment refers to a part or portion of a larger sum of money paid or received at regular intervals, such as monthly or quarterly payments on a loan or mortgage. It can also refer to a segment or section of a larger work, such as a book or film, that is released or presented separately over time.
Instantiable refers to the quality of being able to be instantiated, or to be created as an instance of a class or a concept. In other words, an instantiable entity is one that can be created or realized in the physical or real world.