inactivation vs dismissal

inactivation and dismissal both are nouns.

Word	Noun	Adjective	Verb	Adverb
inactivation	Yes	No	No	No
dismissal	Yes	No	No	No

As nouns, dismissal is a hypernym of inactivation; that is, dismissal is a word with a broader meaning than inactivation:

inactivation: breaking up a military unit (by transfers or discharges)
dismissal: the termination of someone's employment (leaving them free to depart)

Other hypernyms of inactivation include discharge, dismission, firing, liberation, release, sack, sacking.

inactivation (noun)	dismissal (noun)
breaking up a military unit (by transfers or discharges)	the termination of someone's employment (leaving them free to depart)
the process of rendering inactive	a judgment disposing of the matter without a trial
	official notice that you have been fired from your job
	permission to go; the sending away of someone