folly
C1Formal, Literary, Historical
Definition
Meaning
A foolish or unwise act, idea, or undertaking; a lack of good sense or judgment.
A costly, elaborate, and often useless structure built as a decorative oddity or for amusement, especially in a garden or park.
Linguistics
Semantic Notes
Often carries connotations of hubris, vanity, or tragic waste, and is frequently used in literary or historical contexts to describe actions leading to downfall.
Dialectal Variation
British vs American Usage
Differences
In British English, the architectural/garden 'folly' sense is more commonly referenced in historical contexts. American English usage leans slightly more toward the abstract sense of 'foolishness'.
Connotations
Similar connotations in both varieties, though the UK has stronger historical/architectural associations.
Frequency
Low-frequency in both varieties; more likely encountered in formal writing, literature, or history.
Vocabulary
Collocations
Grammar
Valency Patterns
It is folly to + INFthe folly of + NPNP (e.g., a building) is a follyVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Pillar of folly”
- “Folly's reward”
- “To see the folly of one's ways”
Usage
Context Usage
Business
"Investing all capital without diversification was sheer economic folly."
Academic
"The historian analysed the geopolitical follies that precipitated the conflict."
Everyday
"It would be folly to go hiking in this storm."
Technical
Rare. In architecture/landscaping: "The 18th-century estate features a Gothic revival folly."
Examples
By Part of Speech
verb
British English
- He has been known to folly about with those risky investments.
- One does not folly with matters of state.
American English
- (Note: 'Folly' is not standardly used as a verb in modern English. These are archaic/poetic constructions.)
adverb
British English
- (Note: 'Folly' is not used as an adverb. The adverbial form is 'foolishly'.)
American English
- (Note: 'Folly' is not used as an adverb.)
adjective
British English
- (Note: 'Folly' is not used as a standard adjective. The adjectival form is 'foolish' or 'foolhardy'.)
American English
- (Note: 'Folly' is not used as a standard adjective.)
Examples
By CEFR Level
- It is folly to run across a busy road.
- The decision to cancel the insurance proved to be a great folly.
- The war is now seen as a tragic folly that cost millions of lives.
- The crumbling Gothic folly on the hill stood as a poignant symbol of the family's vanished wealth and ambition.
Learning
Memory Aids
Mnemonic
Think of a FOOL building a costly, LAVISH (folly) castle with no purpose. Fool + Lavish = Folly.
Conceptual Metaphor
FOLLY IS A BUILDING (e.g., 'a monument to folly', 'edifice of folly'), FOLLY IS A JOURNEY ('the road to folly'), FOLLY IS DARKNESS ('the folly blinded them').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation to 'глупость' in all contexts; 'folly' is more formal/literary and often implies disastrous consequences. The architectural sense has no direct equivalent.
- Do not confuse with 'folly' as a building and 'folly' as an act; Russian would use different words ('каприз архитектора' vs 'безумие').
Common Mistakes
- Using it as a direct synonym for 'mistake' (too weak).
- Confusing it with 'foolery' (which is more playful/less serious).
- Using it in casual, low-stakes contexts (overly formal).
Practice
Quiz
In which context is the word 'folly' used CORRECTLY?
FAQ
Frequently Asked Questions
No, it is a relatively low-frequency word, more common in formal, literary, or historical writing.
Yes, in architecture and gardening history, a 'folly' is a decorative, often extravagant building constructed primarily for ornamentation rather than practical use.
'Folly' implies a foolish action or decision, often with serious negative consequences, and sounds more formal or literary. 'Stupidity' is a more general and blunt term for lack of intelligence or sense.
No, 'folly' is solely a noun in modern English. The related verb is 'to fool' or the phrase 'to act foolishly'.
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