Tardy (adjective)

Late or slow in arriving or doing something; not punctual.

Origin:

Late middle english: from old french tardif, -ive, from latin tardivus, from tardus "slow".

Examples:

1. He was tardy for the meeting and missed the first 15 minutes.
2. The train is tardy and has been delayed for an hour.
3. The tardy student was given detention after arriving late to class.
4. I apologize for being tardy, I got caught in traffic.
5. It's tardy of you to arrive after the party has already started.