English Reference

Word

probable

Phoneticsprob·a·ble, stress on the first syllable

US/ˈpɹɑbəbəɫ/

UK/pɹˈɒbəbəl/

Definitions

01likely to be true

B1 · Intermediate

adj. likely to be true or to have happened based on the evidence.

adj. supported by evidence strong enough to establish presumption but not proof.

“The most probable cause of the fire was an old heater.”

“Given the available forensic evidence, the most probable explanation is that the document was altered after it was signed.”

02likely to happen

B1 · Intermediate

adj. expected to happen in the future.

adj. having a high probability of occurring.

“It is probable that the price of petrol will go up next month.”

“Economists suggest that a modest recovery is probable by the third quarter, provided that interest rates remain stable.”

03a likely candidate

C1 · Advanced Countable noun Informal

n. a person who is expected to be chosen for a team or a job.

n. a person considered likely to achieve a certain status, such as selection for a sports team.

“After the final practice, he was listed as a probable for the national team.”

“The coach spent the afternoon narrowing down the list of probables, eventually selecting twenty players for the summer tour.”

Antonyms

04a likely event

C2 · Proficiency Countable noun Formal

n. something that is very likely to occur.

n. an event or outcome that is highly likely to happen.

“In the world of business, we must plan for every probable.”

“The risk assessment team moved the project from the category of 'possibles' to 'probables' following the latest market survey.”

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “probable” in context.

Verb

01. consider it probable

“Most experts consider it probable that the technology will be obsolete in five years.”

verb + noun + adj

02. seem probable

“It didn't seem probable that he could finish the marathon in under three hours.”

verb + adj

Adjective

03. probable cause

“The police officer stated there was probable cause to search the vehicle.”

adj + noun

04. probable outcome

“Analysts are debating the most probable outcome of the upcoming election.”

adj + noun

05. probable that-clause

“It is probable that the team will win the championship this year.”

adj + that-clause

Adverb

06. entirely probable

“It is entirely probable that the meeting will be postponed until next week.”

adv + adj

07. highly probable

“Given the current economic climate, a rise in interest rates seems highly probable.”

adv + adj

Real-World Examples

“Instead of asking people to consider whether a concept is probable, it gets them thinking about what might be possible.”
Phys.org 14 Sept 2026
“The International Agency for Research on Cancer labels it a probable carcinogen .”
The Guardian 30 Aug 2026

Etymology

From Middle English probable, from Old French probable, from Latin probābilis (“that may be proved, credible”), from probāre (“to test, examine”); see probe, probity, prove. Compare recent doublet provable.

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

Word family

ADJECTIVE

probable(B2)

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 IntermediateOxford
Updated

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