eruption vs activeness

eruption and activeness both are nouns.

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

As nouns, activeness is a hypernym of eruption; that is, activeness is a word with a broader meaning than eruption:

Other hypernyms of eruption include action, activity.

eruption (noun)	activeness (noun)
the sudden occurrence of a violent discharge of steam and volcanic material	the trait of being active; moving or acting rapidly and energetically
a sudden very loud noise	the state of being active
the emergence of a tooth as it breaks through the gum
a sudden violent spontaneous occurrence (usually of some undesirable condition)
(of volcanoes) pouring out fumes or lava (or a deposit so formed)
symptom consisting of a breaking out and becoming visible