contestation vs disputation

contestation and disputation both are nouns.

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

As nouns, contestation and disputation are synonyms defined as:

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

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

contestation (noun)	disputation (noun)
a contentious speech act; a dispute where there is strong disagreement	the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)
	a contentious speech act; a dispute where there is strong disagreement