1. not referred to or spoken about

Examples

• The elephant in the room remained unmentioned during the entire meeting.
• Her contributions to the project went unmentioned in the final report.
• There were several unmentioned factors that influenced the decision.
• The scandal was left unmentioned by the press for weeks.
• His name was conspicuously unmentioned in the thank-you speech.
• The unmentioned details would have changed everything.