'Untimeliness' definitions:

Definition of 'untimeliness'

(from WordNet)
noun
Being at an inappropriate time [syn: unseasonableness, untimeliness] [ant: seasonableness, timeliness]
noun
The quality of occurring at an inconvenient time [syn: inopportuneness, untimeliness] [ant: opportuneness, patness, timeliness]

Definition of 'Untimeliness'

From: GCIDE
  • Untimeliness \Un*time"li*ness\, n. Unseasonableness. [1913 Webster]