Definition
'Unbeknown' means without the knowledge of someone. It implies that something is happening or has happened without a particular person being aware of it. Think of a surprise party being planned for you. It suggests a sense of secrecy or unawareness. It's often used to introduce an unexpected or ironic twist. 'Unbeknown' adds a layer of surprise to a situation. Think of it as a plot twist in a movie.