Difference between Controversial and Debatable

CONTROVERSIAL vs DEBATABLE: ADJECTIVE

Open to doubt or debate
Capable of being disproved
Open to argument or debate
Open to dispute; questionable.
In dispute, as land or territory claimed by more than one country.
Liable to be debated; disputable; subject to controversy or contention; open to question or dispute.
A tract of land between the Esk and the Sark, claimed by both England and Scotland; the Batable Ground.
Controversial. Not fully proved, open to debate, sometimes used humorously.
Of a person, argumentative.
A fitting subject for debate.
Being such that formal argument or discussion is possible.

Of or pertaining to controversy; characterized by or connected with disputation; disputatious: as, a controversial discourse.

Admitting of debate or argument; disputable; subject to controversy or contention; questionable: as, a debatable question; debatable claims.

Objectionable, Dubious, Provocative, Problematic, Thorny, Controversy, Divisive, Arguable, Moot, Polemic, Polemical, Disputable, Disputed, Debatable, Contentious

Objectionable, Reprehensible, Disputed, Contested, Contentious, Doubtful, Dubious, Contestable, Problematic, Controversial, Problematical, Questionable, Moot, Disputable, Arguable

Objectionable, Dubious, Provocative, Problematic, Thorny, Controversy, Divisive, Arguable, Moot, Polemic, Polemical, Disputable, Disputed, Debatable, Contentious

Objectionable, Reprehensible, Disputed, Contested, Contentious, Doubtful, Dubious, Contestable, Problematic, Controversial, Problematical, Questionable, Moot, Disputable, Arguable

Steve Bannon and controversial counterterrorism advisor Sebastian Gorka.
The action will have highly controversial environmental effects.
Does he still stand by his controversial suggestions?
Mulick, Controversial therapies for autism and intellectual disabilities.
What we call ourselves can also be controversial.
These two verses are arguably the most controversial ones in the Pentateuch and certainly the most controversial in Leviticus.
Because the natural right of property was controversial, so the administration of any substantive constraint along these lines was bound to be controversial.
Representative of differing viewpoints on controversial subjects Students have the right to information on both sides of a controversial issue.
Stevens was a controversial governor in his time, and has become more controversial in retrospect.
Academic research meets practice: Why controversial results are not controversial.

Now, that is an arguable and debatable point.
Conaway, a motion to table is not debatable.
Moreover, some of the news have debatable sources.
First, the legitimacy of military conscription is debatable.
Provide your thesis, which needs to be debatable.
To quote Henry Ford, history is politely debatable.
Treating as absolute or uncontestable eminently debatable propositions.
If another motion is pending, an appeal is not debatable; if no motion is pending the appeal is debatable.
The motion is debatable only if the motion to be reconsidered is itself debatable.
Senate to further limit debate on a resolution, debatable motion, or appeal is not debatable.