Word
impure
Phoneticsim·pure, stress on the second syllable
US/ˌɪmˈpjʊɹ/
UK/ɪmpjˈɔː/
Definition
adj. containing something bad or unwanted. In programming, it means a value or data that is not in the correct format or is missing.
adj. containing an undesirable or incorrect component. In a programming context, it describes a value that fails to meet a specific type or validation constraint.
Examples
“The function returns an impure value if the input is wrong.”
“The system checks for impure data before it processes the transaction to prevent errors.”
“In functional programming, an impure function is one that produces different results for the same input or has side effects that alter the program's state.”
Examples
simple
“The function returns an impure value if the input is wrong.”
contextual
“The system checks for impure data before it processes the transaction to prevent errors.”
complex
“In functional programming, an impure function is one that produces different results for the same input or has side effects that alter the program's state.”
Real-World Examples
“The woman is not a Brahmin and is considered sexually “impure” – because she is not a virgin – as per prevailing norms.” Etymology
From Middle French impur, from Latin impūrus.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
Domain
- 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.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL 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: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Occasional
- Level
- C1 · Advanced
- Updated
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QR code
englishreference.com/q/impure