trilemma
LowFormal, Academic
Definition
Meaning
A situation in which a person is faced with three difficult choices, all of which are mutually exclusive or undesirable, and choosing one necessitates sacrificing the others.
In philosophy, logic, and decision theory: a choice among three options, each of which is unacceptable or leads to a problematic outcome. More broadly, any complex problem presenting three horns of a difficult decision.
Linguistics
Semantic Notes
A direct extension of the concept of 'dilemma' (two difficult choices) to three choices. Often used in structured arguments (e.g., political theory, economics, theology) to frame a problem where all three possible solutions have significant drawbacks.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. The term is equally rare in both varieties and used in the same academic/technical contexts.
Connotations
Neutral; implies a sophisticated or formal framing of a complex problem.
Frequency
Extremely low frequency in general usage. Slightly more common in UK academic writing, particularly in philosophy and politics, but still a specialist term.
Vocabulary
Collocations
Grammar
Valency Patterns
The [agent] faces/poses a trilemma between/of [option 1], [option 2], and [option 3].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “On the horns of a trilemma”
Usage
Context Usage
Business
Discussions of strategic trade-offs (e.g., 'the project management trilemma of fast, good, or cheap').
Academic
Framing philosophical, economic, or political arguments (e.g., 'the trilemma of international finance').
Everyday
Virtually never used. Might be used humorously or self-consciously to describe a personal choice between three bad options.
Technical
Logic, philosophy, political science, economics, and engineering to describe systems with three conflicting desiderata.
Examples
By Part of Speech
verb
British English
- The policy proposal neatly trilemmatises the issue for the opposition.
American English
- The theorist trilemmatized the argument to show its flaws.
adjective
British English
- They found themselves in a trilemma situation with no easy way out.
American English
- The trilemma nature of the crisis became apparent.
Examples
By CEFR Level
- The government faces a trilemma: cut services, raise taxes, or increase borrowing.
- The philosopher presented a compelling trilemma, forcing a choice between personal freedom, social equality, and economic efficiency, all of which cannot be fully realised simultaneously.
Learning
Memory Aids
Mnemonic
Think of a TRIdent. It has three points (tri-) and can spear you on any one of them, just like a trilemma presents three pointed, difficult choices.
Conceptual Metaphor
A THREE-HORNED BEAST (extending the 'horns of a dilemma' metaphor).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid directly translating as 'тройная проблема' (triple problem) or 'трёхсторонняя дилемма' (three-sided dilemma). The established term in Russian academic contexts is 'трилемма'.
Common Mistakes
- Using 'trilemma' to describe any complex problem, rather than one specifically structured around three mutually exclusive and undesirable choices. Confusing it with 'dilemma'.
Practice
Quiz
What is the key feature of a trilemma?
FAQ
Frequently Asked Questions
Yes, though it's a low-frequency, formal term used primarily in academic and technical writing. It's a direct extension of 'dilemma'.
A dilemma involves two difficult choices ('on the horns of a dilemma'). A trilemma extends this structure to three difficult and mutually exclusive choices.
It would sound very formal or even pretentious. In casual speech, you'd say 'a tough choice between three things' or 'caught between a rock and a hard place... and a third hard place'.
Yes, though they are even rarer. 'Tetralemma' (four) and 'polylemma' (many) exist but are almost exclusively used in very specialised philosophical or logical contexts.