Was heißt »kontrovers« auf Englisch?

Das Adjektiv kontrovers lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Deutsch/Englische Beispielübersetzungen

Tom hat schon wieder ein kontroverses Buch veröffentlicht.: Tom has again published a controversial book.
Dieses Thema ist äußerst kontrovers.: This subject is extremely controversial.
Es gab einen ziemlichen Wirbel bei der Ratssitzung, als die kontroversen Vorschläge zur Debatte standen.: There was quite a kerfuffle at the council meeting when the controversial proposals were being debated.
Es war eine kontroverse Entscheidung.: It was a controversial decision.
Die Weltbank hat mit der Bewertung von Laos’ kontroversem Nam-Theun-II-Wasserkraftprojekt begonnen.: The World Bank has begun appraisal of Laos’ controversial Nam Theun II hydroelectric project.

spalten:: cleave; split
strittig:: disputed; litigious; moot
umstritten:: argumentative; argumentatively; contended; contentious; controverted; debatable; debatably; disputed; divisive; in contest; in contestation; mooted; skeptical; vexed

sicher:: safe; sure
zweifellos:: beyond doubt; certainly; doubtless; doubtlessly; hands down; indubitable; indubitably; no doubt; strictly; undoubted; undoubtedly; undoubtful; unquestionably; without doubt
zweifelsfrei:: doubtless

This movie is highly controversial.
Mary and Tom quarrelled about the controversial tags to apply to this sentence.
Sometimes it's just best to avoid topics that might be controversial.
This theory is scientifically controversial.
This scientific theory is controversial.
This scientific theory is very controversial.
This idea is controversial.
That's a controversial theory.
This theory is very controversial.
That's very controversial.
This question is controversial.
Tom said something controversial.
Agricultural subsidies are one of the most important and controversial budget items in the European Union.