English Reference

Word

ambiguous

Phoneticsam·bigu·ous

US/æmˈbɪɡjuəs/

UK/æmbˈɪɡjuːəs/

Definitions

01having multiple meanings

B2 · Upper Intermediate Academic

adj. having more than one possible meaning, which can make something difficult to understand.

adj. open to more than one interpretation; lacking a single, clear meaning or intention.

“The ending of the movie was ambiguous, so we spent an hour debating what actually happened.”

“The contract's ambiguous wording led to a lengthy legal dispute regarding the exact responsibilities of each partner.”

Usage

Often used to describe language, laws, or instructions that are poorly defined.

Pitfall

The instructions were very ambivalent.

The instructions were very ambiguous.

Use 'ambiguous' for things with multiple meanings. Use 'ambivalent' for people who have mixed feelings about a choice.

02uncertain or hesitant

C2 · Proficiency Archaic · Literary

adj. feeling unsure or not taking a clear side in a situation.

adj. characterised by uncertainty or a lack of commitment to a specific course of action.

“He remained ambiguous about which team he supported during the conflict.”

“The general remained ambiguous in his loyalties, waiting to see which faction would emerge victorious before committing his troops.”

Usage

In modern English, this sense is almost entirely replaced by 'ambivalent' or 'hesitant'.

Antonyms

Real-World Examples

“But judges are not trained as historians, and history is often ambiguous.”
The Conversation 28 Sept 2026
“Past experiences of violence had created threat-oriented frames that quickly registered ambiguous cues as dangerous.”
Aeon 2 Oct 2026
“It indicates that ambiguous language is more useful for the way we communicate than it first appears.”
BBC 13 Mar 2014

Etymology

From Latin ambiguus (“moving from side to side, of doubtful nature”), from ambigere (“to go about, wander, doubt”), from ambi- (“around, about, on both sides”) + agere (“to drive, move”).

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

Synonyms

Antonyms

Word family

ADJECTIVE

ambiguous(B2)

Related words

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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