adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Having eleven sides and angles. not-comparable
2. 2
   Of or pertaining to an undecagon. not-comparable

Synonyms

All synonyms

hendecagonal

Etymology

From undecagon + -al.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.