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indeclinable

Definition of indeclinable

adjective

Grammar
  • (of a noun, pronoun, or adjective in a highly inflected language) having no inflections.

Origin:

late Middle English: via French from Latin indeclinabilis, from in- 'not' + declinabilis 'able to be inflected' (see decline)

indeclinable in other Oxford dictionaries

Definition of indeclinable in the US English dictionary
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