- The definition of immeasurable is something that is impossible to measure.
A mother's grief when she loses her child is an example of something that would be described as immeasurable.
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- Impossible to measure. See Synonyms at incalculable.
- Vast; limitless.
- im·measˌur·a·bilˈi·ty, im·measˈur·a·ble·ness noun
- im·measˈur·a·bly adverb