If you divide any number by zero, the result is undefined.
Source: tatoeba (585689)
Undefined
Synonyms for "undefined" (156 found)
Ranked by relevance and common usage.
Closest matches (32)
Strong matches (46)
Related words (78)
Adjective(8 words)
indistinguishableinexactinfiniteinforminnominatejustkaleidoscopiclaxlimitlesslooselovinglow profilelow-profileluminouslumpenmajesticmakingmercifulmerely glimpsedmisty
Show 49 more words
namelessnondescriptnonspecificnuminousobscureomnipotentomnipresentomniscientoneorderlessout of focuspalepermanentperpetualradiantrandomsacredsemivisibleshadowed forthshadowyshapelessshapingsovereignstochasticsupremesweepingtimelessubiquitousunacknowledgedunboundeduncertainunchangingunclearundesignatedundestinedundeterminedunidentifiedunknownunlimitedunnamedunorderedunorganizedunplainunrecognizableunspecifiedvagueveiledweakwithout a name
Adjective(1 words)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Antonyms
2 entriesderived
1 entrieshas context
2 entriesrelated to
5 entriessimilar
4 entriesTranslations
19 translations across 12 languages.
Bulgarian
1 entries- неопределе́н adj (lacking definition or value)
Catalan
2 entries- indefinit adj (lacking definition or value)
- indefinit adj (mathematics: without interpretation)
Chinese Mandarin
1 entries- 未定義 /未定义 adj (lacking definition or value)
Czech
1 entries- nedefinovaný adj (lacking definition or value)
Finnish
3 entries- epämääräinen adj (lacking definition or value)
- määrittelemätön adj (lacking definition or value)
- määrittelemätön adj (mathematics: without interpretation)
French
2 entries- indéfini adj (lacking definition or value)
- indéfini adj (mathematics: without interpretation)
Italian
1 entries- indefinito adj (lacking definition or value)
Polish
2 entries- nieokreślony adj (lacking definition or value)
- niezdefiniowany adj (lacking definition or value)
Portuguese
1 entries- indefinido adj (lacking definition or value)
Romanian
2 entries- nedefinit adj (lacking definition or value)
- nedefinit adj (mathematics: without interpretation)
Russian
2 entries- неопределённый adj (lacking definition or value)
- неопределённый adj (mathematics: without interpretation)
Vietnamese
1 entries- không xác định adj (mathematics: without interpretation)
Sample sentences
10 total sentences available.
An irregular galaxy has an undefined shape and is full of young stars, dust, and gas.
Source: tatoeba (3957788)
Now remember, our variable is still undefined.
Source: tatoeba (9416114)
The result of dividing any number by zero is undefined.
Source: tatoeba (9418571)
Showing 4 of 10 available sentences.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.