desynchronizing vs desynchronisation

desynchronizing and desynchronisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
desynchronizing	Yes	No	No	No
desynchronisation	Yes	No	No	No

As nouns, desynchronizing and desynchronisation are synonyms defined as:

desynchronizing and desynchronisation: the relation that exists when things occur at unrelated times

Other synonyms of desynchronizing include asynchronism, asynchrony, desynchronization.

desynchronizing (noun)	desynchronisation (noun)
the relation that exists when things occur at unrelated times	the relation that exists when things occur at unrelated times