Definition - What does Inchoate Offense mean?
An inchoate offense is a crime that consists of planning to undertake another crime. Examples of this include conspiring with others to commit a crime; attempting a crime but not getting to the point where the crime is enacted; or any other planning for a crime.
Justipedia explains Inchoate Offense
If a person plans a robbery and then attempts it, but something goes wrong during the commission of the robbery, the person has still committed an offense by attempting to do a crime, so the crime that they would be charged with would be attempted robbery.