- (obsolete) Unwary; unready.
- Moving with a slow pace or motion; not swift.
- ineffectual; slow-witted, slow to act, or dullard.
"His tardy performance bordered on incompetence."
- (obsolete) Criminal; guilty.
- Late; overdue or delayed.
"He yawned, then raised a tardy hand over his mouth."
- (US) A piece of paper given to students who are late to class.
"The teacher gave her a tardy because she did not come into the classroom until after the bell."
- (obsolete, transitive) To make tardy.