activeness vs busyness

activeness and busyness both are nouns.

Word	Noun	Adjective	Verb	Adverb
activeness	Yes	No	No	No
busyness	Yes	No	No	No

As nouns, busyness is a hyponym of activeness; that is, busyness is a word with a more specific, narrower meaning than activeness:

activeness: the state of being active
busyness: the state of being or appearing to be actively engaged in an activity

Other hyponyms of activeness include agency, hum, behavior, behaviour, eructation, eruption, extravasation, operation, overdrive, play, swing.

activeness (noun)	busyness (noun)
the trait of being active; moving or acting rapidly and energetically	the state of being or appearing to be actively engaged in an activity
the state of being active