adjective in·de·clin·able \ˌin-di-ˈklī-nə-bəl\

Definition of indeclinable

  1. :  having no grammatical inflections

Origin and Etymology of indeclinable

Middle English, from Late Latin indeclinabilis, from Latin in- + Late Latin declinabilis capable of being inflected, from Latin declinare to inflect — more at decline

First Known Use: 14th century

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