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: unable to be defined or precisely described : indefinable
a seemingly undefinable term … he felt an undefinable dread laying hold on him …— George Eliot
Recent Examples on the Web
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'undefinable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1690, in the meaning defined above
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full of whispering sounds
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