Standard Lemma guide

pentagonal

adj · noun · 3 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

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  • /pɛnˈtæɡənəl/
  • Canada: Recorded audio is listed in the source snapshot.
  • rhymes with -æɡənəl

1

adj

Meaning 1

Of, relating to, or shaped like a pentagon.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Something having the shape of a pentagon.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective

Meaning 3

of or relating to or shaped like a pentagon

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pentangular

Antonyms: none provided

History

Etymology

From pentagon + -al.

Across languages

Translations

18 source translations are retained for this English entry.

  • Bengali: পঞ্চভুজাকৃতি (poncobhujakriti) — of, relating to, or shaped like a pentagon
  • Bulgarian: петоъгълен (petoǎgǎlen) — of, relating to, or shaped like a pentagon
  • Catalan: pentagonal — of, relating to, or shaped like a pentagon
  • Esperanto: kvinangula — of, relating to, or shaped like a pentagon
  • Galician: pentagonal — of, relating to, or shaped like a pentagon
  • Georgian: ხუთკუთხა (xutḳutxa) — of, relating to, or shaped like a pentagon
  • Georgian: პენტაგონალური (ṗenṭagonaluri) — of, relating to, or shaped like a pentagon
  • Ancient Greek: πεντάγωνος (pentágōnos) — of, relating to, or shaped like a pentagon
  • Hebrew: מחומש (mekhumásh) — of, relating to, or shaped like a pentagon
  • Ido: pentagonala — of, relating to, or shaped like a pentagon
  • Italian: pentagonale — of, relating to, or shaped like a pentagon
  • Latin: quinquangulus — of, relating to, or shaped like a pentagon
  • Norwegian Bokmål: femkantet — of, relating to, or shaped like a pentagon
  • Portuguese: pentagonal — of, relating to, or shaped like a pentagon
  • Russian: пятиуго́льный (pjatiugólʹnyj) — of, relating to, or shaped like a pentagon
  • Spanish: pentágono — of, relating to, or shaped like a pentagon
  • Spanish: pentagonal — of, relating to, or shaped like a pentagon
  • Tagalog: limsihain — of, relating to, or shaped like a pentagon
Real reading context

pentagonal in complete knowledge articles