controversial
Americanadjective
-
of, relating to, or characteristic of controversy, or prolonged public dispute, debate, or contention; polemical.
a controversial book.
-
subject to controversy; debatable.
a controversial decision.
- Synonyms:
- questionable, arguable
-
given to controversy; argumentative; disputatious.
a controversial public figure.
Usage
What does controversial mean? Controversial is used to describe someone or something that causes people to get upset and argue. Controversial is the adjective form of the noun controversy, which is a prolonged dispute, debate, or state of contention, especially one that unfolds in public and involves a stark difference of opinion. Things commonly called controversial include topics, actions, and people (particularly for what they say and do). Example: Questions about the candidate’s controversial remarks from the past prevented him from talking about his campaign.
Other Word Forms
Etymology
Origin of controversial
First recorded in 1575–85; from Late Latin contrōversiālis; equivalent to controversy + -al 1
Explanation
If a politician ran for office on the platform that children should be put to work from age six, his platform is likely to be controversial, meaning it will cause controversy, or a long discussion among people with opposing opinions. Controversies are usually public disagreements about important matters. The adjective controversial is from the Latin from controversus "disputed," formed from the prefix contra- "against" plus versus, from vertere "to turn." The Latin suffix –ialis, corresponding to the English suffixes –ial and –al, means "relating to or characterized by."
Vocabulary lists containing controversial
Against All Odds: Contra and Counter
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Nothing But the Truth
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
100 SAT words Beginning with "C"
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Craig Maurer, now a managing director at Financial Technology Partners, remembers feeling like his bullish pre-IPO view was rare and controversial.
From MarketWatch • May 25, 2026
In addition, Kalshi has removed some of its more controversial markets.
From BBC • May 21, 2026
And as a widely-circulated but controversial blog post by AI investor Matt Shumer External link put it, “If AI is smarter than most PhDs, do you really think it can’t do most office jobs?”
From Barron's • May 21, 2026
Steyer said the idea that the money funding his campaign is from controversial investments is “absurd.”
From Los Angeles Times • May 19, 2026
One of the documentaries we watched concerned a controversial American motorcycle group, the Hell’s Angels.
From "Long Walk to Freedom" by Nelson Mandela
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
