Akademik

timeliness
noun
1. being at the right time (Freq. 1)
Syn: ↑seasonableness
Ant: ↑untimeliness, ↑unseasonableness (for: ↑seasonableness)
Derivationally related forms: ↑timely, ↑seasonable (for: ↑seasonableness)
Hypernyms: ↑timing
2. timely convenience
Syn: ↑opportuneness, ↑patness
Ant: ↑inopportuneness (for: ↑opportuneness)
Derivationally related forms: ↑timely, ↑pat (for: ↑patness), ↑opportune (for: ↑opportuneness)
Hypernyms: ↑convenience

Useful english dictionary. 2012.