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Pronunciation varies by accent · noun
(rare) The quality of being undistinguishable; indistinguishability, indistinctness..
Use undistinguishableness when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Undistinguishableness means (rare) The quality of being undistinguishable; indistinguishability, indistinctness..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use undistinguishableness where its definition matches the intended context.
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