English Reference
adjective

contentious

adj.
US /kənˈtɛnʃəs/ UK /kəntˈɛnʃəs/ con·tentious

  1. 01 C1 Advanced FormalAcademic

    causing a lot of angry disagreement or heated discussion between people.

    likely to cause controversy or heated public debate. Often used to describe topics, decisions, or policies.

    Simple

    The decision to build a new road through the park was very contentious.

    In context

    The proposed changes to the pension scheme remain a highly contentious issue among union members and government officials alike.

    Usage

    Commonly used in the phrase 'a contentious issue' or 'a contentious decision'.

    uncontroversialagreed
  2. 02 C2 Proficiency FormalLiterary

    describes a person who often argues or likes to start fights with others.

    exhibiting an argumentative or quarrelsome nature. This sense focuses on the personality trait rather than the topic of debate.

    Simple

    He has a contentious relationship with his neighbors and they often argue.

    In context

    The committee's progress was frequently stalled by a few contentious members who refused to compromise on even minor points.

    Teacher's tip

    This sense is less common than the 'controversial issue' sense; in modern English, 'argumentative' is usually preferred for people.

    peaceableagreeable

Always a contentious issue, gender diversity has become particularly volatile over the past few years.

Toronto Sun· 17 Aug 2026

But the complex job goes beyond the briefing room podium to include managing contentious relationships with the press, coordinating with other parts of the White House, and providing media advice to the president.

BBC News· 13 Aug 2026

From Middle French contentieux, from Latin contentiōsus (“quarrelsome, perverse”), from contentiō (“contention”), from contendere, past participle contentus (“to contend”). Equivalent to English contention + -ous.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level C1 · Advanced
Frequency Frequent
Updated