English Reference

Word

mystery

Phoneticsmys·tery

US/ˈmɪstɝi/

UK/mˈɪstəɹi/

Definitions

01something unexplained

B1 · Intermediate Countable noun

n. something that people cannot explain or understand because they do not have enough information.

n. an inexplicable or secretive phenomenon that eludes human understanding or lacks a logical explanation.

“The exact cause of the fire remains a mystery to the investigators.”

“The sudden disappearance of the ancient civilisation remains a profound mystery that continues to baffle archaeologists and historians alike.”

Antonyms

02a genre of fiction

B1 · Intermediate Countable noun

n. a book, film, or play about a crime that is not solved until the very end.

n. a fictional subgenre, typically involving a crime or murder, where the plot focuses on the process of investigation and discovery.

“She loves reading a good murder mystery before she goes to sleep.”

“The author is famous for writing intricate mysteries that challenge the reader to identify the culprit before the final chapter.”

Synonyms

thrillerdetective storywhodunit

03a puzzling person

B2 · Upper Intermediate Countable noun

n. a person who is difficult to understand because they are very private or quiet.

n. a person whose character, motives, or background are obscure or puzzling to others.

“He is a bit of a mystery; nobody really knows where he goes on weekends.”

“Despite her public persona, her private life remained a mystery even to her closest professional associates.”

Synonyms

04religious truth

C1 · Advanced Countable noun Religion Formal

n. a religious belief that is impossible for humans to fully understand.

n. a religious truth or dogma that is considered beyond the grasp of human reason and can only be known through divine revelation.

“The priest spoke about the mystery of faith during the Sunday service.”

“Theologians have spent centuries debating the central mysteries of the faith, acknowledging that some truths remain inaccessible to pure logic.”

Synonyms

05a craft or trade

C2 · Proficiency Countable noun Archaic

n. a special skill or trade that people used to learn in a guild.

n. a specific craft, art, or trade, often associated with the medieval guild system.

“In the past, young men were apprenticed to learn the mystery of weaving.”

“The medieval guild was responsible for protecting the secrets and mysteries of the goldsmith's trade from outside competition.”

Synonyms

Collocations

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

Verb

01. remain a mystery

“Why he decided to leave his job so suddenly will always remain a mystery to me.”

verb + noun

02. solve the mystery

“The police are working hard to solve the mystery of the missing painting.”

verb + noun

Adjective

03. great mystery

“The origin of these ancient stones is still a great mystery to historians.”

adj + noun

04. murder mystery

“We spent the evening watching a classic murder mystery on television.”

adj + noun

05. unsolved mystery

“The disappearance of the ship remains an unsolved mystery after fifty years.”

adj + noun

Noun

06. mystery novel

“She loves reading a good mystery novel before she goes to sleep.”

noun + noun

07. sense of mystery

“The thick fog gave the old castle a strange sense of mystery.”

noun + of + noun

Preposition

08. in mystery

“The true identity of the author is still shrouded in mystery.”

prep + noun

Etymology

From Middle English mysterie, from Anglo-Norman misterie (Old French mistere), from Latin mysterium, from Ancient Greek μυστήριον (mustḗrion, “a mystery, a secret, a secret rite”), from μύστης (mústēs, “initiated one”), from μυέω (muéō, “to initiate”), from μύω (múō, “to shut”). Displaced native Old English ġerȳne.

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

Word family

NOUN

mystery(B1)

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.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL 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: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Common
Level
B1 · IntermediateOxford
Updated

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