circular definition

[/ˈsɜːrkjələr ˌdefɪˈnɪʃən/]
nounpl: circular definitions
definição circular
1. A definition in which the term being defined is used in the definition itself, making it logically invalid or uninformative
Defining 'run' as 'to run quickly' is a circular definition because it uses the word being defined within its own definition.
Definir 'correr' como 'mover-se rapidamente correndo' é uma definição circular porque usa a palavra sendo definida dentro de sua própria definição.
2. A form of logical fallacy where the definition assumes knowledge of the term it is attempting to explain
The teacher criticized the student's circular definition of honesty as 'being honest'.
A professora criticou a definição circular do aluno de honestidade como 'ser honesto'.
This term is primarily used in academic, philosophical, and educational contexts in both English-speaking and Portuguese-speaking countries. It is a critical concept in logic, linguistics, and debate, often highlighted as a fundamental error in argumentation and definition-making.
Synonyms / Sinônimos
circular reasoningbegging the questiontautological definitionself-referential definition
Antonyms / Antônimos
clear definitionprecise definitionvalid definition

Regional Variations

General Brazilian
definição circular
Standard term used in academic and logical discourse
São Paulo
definição circular
Commonly used in academic environments and philosophy departments
Portugal
definição circular
Same usage as in Brazil; academic Portuguese maintains consistency

Related Words

fallacylogical errortautologydefinitionsemanticsrhetoric

Related Idioms & Phrases

going around in circles
chasing your tail
back to square one
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