Tardiness

Noun

 * 1)  The state or quality of being tardy.
 * 2)  The result or product of being tardy.

Thesaurus
anachronism, antedating, anticipation, belatedness, earliness, eleventh hour, high time, historical error, last minute, late hour, lateness, metachronism, misdate, misdating, mistiming, parachronism, postdating, prochronism, prolepsis, small hours, unpreparedness, unpunctuality, unreadiness, untimeliness

Etymology
From

Synonyms

 * lateness

Antonyms

 * punctuality