unpunctual Antonyms

punctual at the exact time specified just in the nick of time just at the right time at the proper time in the very nick of time in the right time exactly on time at the right time at the appropriate time at the appointed time bang on time right on the nose right at the time right on the dot right on schedule right on cue right in time at the scheduled time at the designated time at precisely the right time at precisely the right moment timely punctually punctiform promptly prompt beginning backward antique 24-7 in due time at just the right moment dead on time in a timely manner on the knocker on the dot spot on bang on in due course accurate