1. comparative form of untimely; more inappropriate in timing or occurring at a worse time
Usage: comparative form; relatively uncommon

Examples

• His second interruption was even untimelier than the first.
• The rain became untimelier as the wedding ceremony began.
• Her untimelier arrival disrupted the entire meeting.
• The news could not have been untimelier given the circumstances.
• Each delay proved untimelier than the last.