English Reference

Word

impossible

Phoneticsim·pos·si·ble, stress on the second syllable

US/ˌɪmˈpɑsəbəɫ/

UK/ɪmpˈɒsəbəl/

Definitions

01not possible

A2 · Elementary

adj. something that cannot happen or be done because it is not possible.

adj. incapable of occurring, being done, or being true; logically or physically unattainable.

“It is impossible to be in two places at the same time.”

“The rescue mission was deemed impossible due to the severe weather conditions and the lack of specialized equipment available at the site.”

Synonyms

unachievableunfeasiblehopeless

02difficult to deal with

B2 · Upper Intermediate Informal

adj. very annoying or difficult to handle.

adj. extremely difficult to deal with, manage, or tolerate. Often used to describe people or social situations.

“My boss is being impossible today and won't listen to any of my ideas.”

“The client made such impossible demands during the negotiation that the legal team advised walking away from the deal entirely.”

Antonyms

03something that cannot be done

B2 · Upper Intermediate Uncountable noun

n. a thing that is not possible.

n. an occurrence or task that is impossible; often used in the phrase 'to do the impossible'.

“The team did the impossible and won the game in the final minute.”

“In the realm of theoretical physics, what was once considered an impossible is now being re-evaluated through new mathematical models.”

Synonyms

04skateboard trick

C2 · Proficiency Countable noun Sports Technical · Slang

n. a trick where the skateboard does a backflip around the rider's foot.

n. a skateboarding maneuver in which the board is wrapped around the back foot in a vertical 360-degree rotation.

“He landed a perfect impossible off the stairs at the park.”

“Mastering the impossible requires precise foot placement and a high degree of vertical pop to ensure the board clears the ground during the wrap.”

Etymology

From Middle English impossible, equivalent to im- + possible.

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

Word family

ADJECTIVE

impossible(A2)

Domain

Mathematics

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.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL 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: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Common
Level
A2 · ElementaryOxford
Updated

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English Reference