1. impossible to explain or understand; not able to be accounted for

Examples

• The sudden disappearance of the documents was inexplainable.
• She felt an inexplainable sense of dread when entering the old house.
• The team’s poor performance this season remains inexplainable to fans.
• There was an inexplainable connection between the two strangers.
• The machine’s malfunction was completely inexplainable to the technicians.
• His inexplainable behavior worried his family and friends.