contestation vs controversy

contestation and controversy both are nouns.

Word	Noun	Adjective	Verb	Adverb
contestation	Yes	No	No	No
controversy	Yes	No	No	No

As nouns, contestation and controversy are synonyms defined as:

contestation and controversy: a contentious speech act; a dispute where there is strong disagreement

Other synonyms of contestation include arguing, argument, contention, disceptation, disputation, tilt.

contestation (noun)	controversy (noun)
a contentious speech act; a dispute where there is strong disagreement	a contentious speech act; a dispute where there is strong disagreement