heptagonal

Intermediate (B1)

IPA: /hɛpˈtæɡənəl/

KK: /hɛpˈtæɡənl/

adjective

Definition

Describing a shape that has seven angles and seven sides.

Example

The architect designed a heptagonal building that stood out in the city.

Conversation

Have you ever seen a heptagonal shape in real life?

I don't think I have, but it sounds interesting!

Yeah, I just learned that it has seven sides.

That's cool! I wonder what practical uses a heptagonal shape could have.

Synonyms & Antonyms

Synonyms

septagonal

sevenfold

heptagon

Antonyms

quadrilateral

octagonal

pentagonal

Root Explanation

Heptagonal → It is formed from "hepta-" (from Greek "hepta", meaning seven) and "gonia" (from Greek "gonia", meaning angle). The word "heptagonal" refers to a shape that has seven angles or sides.

Memory Tip

Think of 'hepta-' meaning seven and 'gonia' meaning angles — so a heptagonal shape has seven angles.

Visually Confused Words

hexagonal