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conundrum

/kəˈnʌndrəm/ noun · British & US
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What does conundrum mean?

A conundrum is a problem or question that is genuinely difficult to solve — confusing, intricate, or seemingly self-contradictory, so that even framing the right answer feels elusive. Unlike a dilemma, which traps you between two unappealing choices, or an enigma, which is simply mysterious, a conundrum presents a concrete puzzle that invites effortful thought. The word is common in political and economic commentary ('the housing conundrum'), ethical debate ('the trolley-problem conundrum'), and casual speech about anything from scheduling conflicts to cryptic crosswords. Its connotations are largely playful and intellectual: calling something a conundrum signals fascination with a knotty challenge rather than despair over it. Curiously, the word itself is a small historical puzzle — it surfaced in English in the early seventeenth century with no traceable source, apparently coined as a piece of pseudo-Latin whimsy, and linguists still debate its true origin.

noun

A confusing and difficult problem or question, especially one that resists straightforward solution.

Example

"Choosing between the two job offers proved a genuine conundrum for her."

Frequently used with modifiers such as 'moral', 'ethical', 'economic', or 'thorny' to indicate the domain of the puzzle.

noun

(Historical) A riddle whose answer hinges on a pun or play on words.

Example

"At the evening's end he offered the company a conundrum: why is a crow like a writing desk?"

This sense predominated from the seventeenth to nineteenth centuries and now survives mainly in historical or literary contexts.

Plural conundrums

The standard plural is 'conundrums'. The Latinate-looking 'conundra' occasionally appears but is generally treated as affected or humorous, since the word is not actually of Latin origin.

Example

"Her new book collects the great moral conundrums of modern life."

Did you know?

Nobody knows where 'conundrum' came from — it appeared in the early 1600s as a joke word mocking learned Latin, and scholars have been trying to solve its own riddle ever since.

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymology of conundrum

Conundrum first appears in English texts in the early seventeenth century, and its origin remains genuinely unknown despite considerable scholarly attention. It resembles Latin forms but corresponds to no known Latin word, leading most authorities to conclude it was probably invented as a piece of jocular pseudo-Latin, much like 'panjandrum' and 'hocus-pocus'. An older sense of the word — a riddle answered by a pun — flourished in the seventeenth through nineteenth centuries before the modern 'difficult problem' sense became dominant. Because its root cannot be identified, it has no established cognates in English or other languages.

How conundrum is actually used

Register is neutral-to-slightly-formal; common in journalism, politics, and everyday speech when discussing tricky problems. The tone often carries mild amusement or intellectual playfulness rather than distress. The plural is 'conundrums'; the variant 'conundra' is occasionally seen but widely considered pedantic or humorous.

Easily confused with conundrum

dilemma

A dilemma forces a choice between two (usually unattractive) alternatives, whereas a conundrum is any baffling problem that resists solution.

enigma

An enigma is something mysterious or inexplicable, while a conundrum is specifically a puzzling problem posed for solution.

quandary

A quandary describes a state of uncertainty or perplexity in which one is stuck, rather than the problem itself.

What's another word for conundrum?

Words and phrases paired with conundrum

moral conundrumpose a conundrumsolve the conundruma thorny conundrum

Rhymes with conundrum