Undeclinable

adj, noun

adj, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Synonym of indeclinable.
Adjective
  1. 1
    Synonym of indeclinable. not-comparable

Example

More examples

"Eighty is an undeclinable number."

Etymology

From un- + declinable.

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