Antonyms of noun untimeliness

1 of 2 senses of untimeliness

Sense 1
unseasonableness, untimeliness -- (being at an inappropriate time)
       Antonym of timeliness (Sense 1)
      => seasonableness, timeliness -- (being at the right time)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun untimeliness

2 senses of untimeliness

Sense 1
unseasonableness, untimeliness -- (being at an inappropriate time)
       => timing -- (the time when something happens)

Sense 2
inopportuneness, untimeliness -- (the quality of occurring at an inconvenient time)
       => inconvenience -- (the quality of not being useful or convenient)