Promptness is a related term of liveliness.
As nouns the difference between promptness and liveliness
is that promptness is the habit or characteristic of doing things without delay while liveliness is the quality of being lively; animation; energy.
promptness
English
Noun
(-)
The habit or characteristic of doing things without delay.
The habit of adhering to a designated time.
Synonyms
* (habit of doing things with out delay) promptitude
* (habit of adhering to a designated time) punctuality, timeliness
liveliness
English
Noun
(-)
The quality of being lively; animation; energy.