I. |ində̇|klīnəbəl, -dē|- adjective
Etymology: Middle French, from Late Latin indeclinabilis, from Latin in- in- (I) + Late Latin declinabilis capable of being inflected, from Latin declinare to inflect grammatically + -abilis -able — more at decline
: having no grammatical inflections : used without case endings
some Latin nouns are indeclinable
II. noun
( -s )
: an indeclinable word