Standard Lemma guide

triangular

adj · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • UK: /tɹaɪˈæŋ.ɡjə.lə/
  • UK: /tɹaɪˈæŋ.ɡjʊ.lə/
  • US: /tɹaɪˈæŋ.ɡjə.lɚ/
  • US: /tɹaɪˈaɪŋ.ɡjʊ.lɚ/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: T R AY0 AE1 NG G Y AH0 L ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Shaped like a triangle.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of, or pertaining to, triangles.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Having a triangle as a base; as, a triangular prism, a triangular pyramid.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Having three elements or parties; trilateral, tripartite.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adjective satellite

Meaning 5

having three sides

Definition source: Princeton WordNet 3.0

Examples

  • a trilateral figure

Meaning relationships

Synonyms: trilateral, three-sided

Antonyms: none provided

6

adjective satellite

Meaning 6

having three angles; forming or shaped like a triangle

Definition source: Princeton WordNet 3.0

Examples

  • a triangular figure
  • a triangular pyrimid has a triangle for a base

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Middle English triangulare, trianguler, triangulere, from Old French triangulaire, triangulier and Latin triangulāris. By surface analysis, tri- + -angular.

Across languages

Translations

68 source translations are retained for this English entry.

  • Arabic: مُثَلَّث (muṯallaṯ) — shaped like a triangle
  • Belarusian: трохвуго́льны (troxvuhólʹny) — shaped like a triangle
  • Belarusian: трыку́тны (trykútny) — shaped like a triangle
  • Bengali: ত্রিভুজাকৃতি (tribhujakriti) — shaped like a triangle
  • Breton: tric'hornek — shaped like a triangle
  • Bulgarian: триъгълен (triǎgǎlen) — shaped like a triangle
  • Czech: trojúhelníkový — shaped like a triangle
  • Czech: trojúhelníkovitý — shaped like a triangle
  • Danish: trekantet — shaped like a triangle
  • Dutch: driehoekig — shaped like a triangle
  • Esperanto: triangula — shaped like a triangle
  • Finnish: kolmikulmainen — shaped like a triangle
  • Finnish: kolmiomainen — shaped like a triangle
  • French: triangulaire — shaped like a triangle
  • Galician: triangular — shaped like a triangle
  • Georgian: სამკუთხა (samḳutxa) — shaped like a triangle
  • German: dreieckig — shaped like a triangle
  • Ancient Greek: τρίγωνος (trígōnos) — shaped like a triangle
  • Hungarian: háromszögletű — shaped like a triangle
  • Hungarian: háromszög alakú — shaped like a triangle
  • Hungarian: háromszögű — shaped like a triangle
  • Irish: triantánach — shaped like a triangle
  • Italian: triangolare — shaped like a triangle
  • Latin: triangulus — shaped like a triangle
  • Manx: tree-uillinagh — shaped like a triangle
  • Manx: tree corneilagh — shaped like a triangle
  • Māori: tapatoru — shaped like a triangle
  • Norwegian Bokmål: trekantet — shaped like a triangle
  • Norwegian Bokmål: trekanta — shaped like a triangle
  • Norwegian Bokmål: triangulær — shaped like a triangle
  • Norwegian Nynorsk: trekanta — shaped like a triangle
  • Norwegian Nynorsk: triangulær — shaped like a triangle
  • Polish: trójkątny — shaped like a triangle
  • Portuguese: triangular — shaped like a triangle
  • Russian: треуго́льный (treugólʹnyj) — shaped like a triangle
  • Scottish Gaelic: triantanach — shaped like a triangle
  • Spanish: triangular — shaped like a triangle
  • Swedish: triangulär — shaped like a triangle
  • Swedish: trekantig — shaped like a triangle
  • Tagalog: tatsihain — shaped like a triangle
  • Ukrainian: трику́тний (trykútnyj) — shaped like a triangle
  • Uzbek: uchburchak — shaped like a triangle
  • Yiddish: דרײַעקיק (drayekik) — shaped like a triangle
  • Yiddish: דרײַקאַנטיק (draykantik) — shaped like a triangle
  • Bulgarian: триъгълен (triǎgǎlen) — of or pertaining to triangles
  • Czech: trojúhelníkový — of or pertaining to triangles
  • Dutch: driehoeks- — of or pertaining to triangles
  • Esperanto: triangula — of or pertaining to triangles
  • Finnish: kolmio- — of or pertaining to triangles
  • Finnish: kolmiomainen — of or pertaining to triangles
  • German: dreiecks- — of or pertaining to triangles
  • Irish: triantánach — of or pertaining to triangles
  • Māori: tapatoru — of or pertaining to triangles
  • Polish: trójkątowy — of or pertaining to triangles
  • Portuguese: triangular — of or pertaining to triangles
  • Russian: треуго́льный (treugólʹnyj) — of or pertaining to triangles
  • Scottish Gaelic: triantanach — of or pertaining to triangles
  • Spanish: triangular — of or pertaining to triangles
  • Tagalog: tatsihain — of or pertaining to triangles
  • Finnish: kolmikulmainen — having a triangle as a base
  • Finnish: kolmiomainen — having a triangle as a base
  • Hungarian: háromszög alapú — having a triangle as a base
  • Irish: triantánach — having a triangle as a base
  • Scottish Gaelic: triantanach — having a triangle as a base
  • Finnish: kolmikantainen — having three elements or parties
  • Hungarian: háromoldalú — having three elements or parties
  • Hungarian: három résztvevős — having three elements or parties
  • Hungarian: háromrészes — having three elements or parties
Real reading context

triangular in complete knowledge articles