English Reference

Word

sober

US/ˈsoʊbɝ/

UK/sˈəʊbɐ/

Definitions

01not drunk

B1 · Intermediate

adj. not affected by alcohol or drugs.

adj. not intoxicated by alcohol or under the influence of recreational drugs.

“He decided to stay sober so he could drive his friends home safely.”

“The witness provided a remarkably clear account of the accident, having remained entirely sober throughout the evening's festivities.”

Synonyms

clear-headedstraight

02serious and sensible

B2 · Upper Intermediate

adj. serious, calm, and sensible in your thinking.

adj. serious, sensible, and solemn in character or manner; showing self-control.

“After the accident, they had a sober discussion about safety rules.”

“The CEO gave a sober assessment of the company's financial situation, avoiding any optimistic language that might mislead the board.”

Synonyms

seriousgravelevel-headed

Antonyms

03plain or dull

C1 · Advanced Formal

adj. plain and not bright in colour.

adj. subdued or muted in colour or tone; lacking brightness or ornamentation.

“She wore a sober grey suit for the job interview.”

“The office was decorated in sober tones of brown and navy, creating a professional if somewhat uninspiring atmosphere.”

Synonyms

04to become less drunk

B2 · Upper Intermediate

v. to stop feeling the effects of alcohol, often used with 'up'.

v. to become sober after a period of intoxication; frequently functions as a phrasal verb with 'up'.

“A walk in the cold air helped him sober up after the party.”

“It took several hours for the suspect to sober up enough to provide a coherent statement to the investigators.”

Synonyms

Antonyms

intoxicate

Real-World Examples

“But despite the relaxed TED talk vibe, this was sober and serious speech.”
BBC News 29 Sept 2026
“After the break, Beard got sober and toured with the band for decades.”
The Guardian 18 Aug 2026

Etymology

Inherited from Middle English sober, from Old French sobre, from Latin sōbrius, from se- (“without”) + ebrius (“intoxicated”), from Proto-Indo-European *h₁egʷʰ- (“drink”). In the sense "not drunk," displaced native undrunken, from Old English undruncen.

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

Idioms

In Music

Cover of Sober by Tool

Cover shown under fair use for identification and commentary.

Sober · 1993 · Alternative metal

Artist:
Tool
Album:
Undertow

Released in 1993, this alternative metal track by Tool explores the struggle of a friend who can only create art while under the influence. The title refers to the literal state of not being affected by drugs or alcohol, highlighting the difficulty of maintaining a clear mind while trying to be creative.

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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English Reference