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Definition of pentagonal

pentagonal

/pɛnˈtæɡ.ən.əl/
pen · tag · o · nal
Adverb:pentagonally
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pentagonal Lexical Profile

pentagonal Game Scores & Validity

• adjective

1

Having five sides and five angles; shaped like or relating to a pentagon.

Example

"The central courtyard of the historic fortress was laid out in a symmetrical pentagonal pattern."

Synonyms
View all synonyms for pentagonal

• Rhymes for pentagonal

• Nearby Words

penstemon
pent
pentagon
pentagonal
pentagram
pentameter
pentas

Word Origin & Etymology

First recorded in the mid-16th century, derived from Late Latin 'pentagonum' (from Ancient Greek 'pentagonon', combining 'pente', meaning five, and 'gonia', meaning angle) plus the adjectival suffix '-al'.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Pentagonal. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/pentagonal
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