What does undistinguishable mean?
Undistinguishable means Imperceptible; indistinct..
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/ˌʌndɪˈstɪŋɡwɪʃəb(ə)l/ · adjective
Imperceptible; indistinct..
Here I obtained the rare and beautiful swallow-tail butterflies, Papilio aenomaus and P. liris; the males of which are quite unlike each other, and belong in fact to distinct sections of the genus, while the females are so much alike that they are undistinguishable on the wing, and to an uneducated eye equally so in the cabinet.
Use undistinguishable when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Undistinguishable means Imperceptible; indistinct..
Common synonyms include indistinguishable.
Possible antonyms include distinguishable.
Here I obtained the rare and beautiful swallow-tail butterflies, Papilio aenomaus and P. liris; the males of which are quite unlike each other, and belong in fact to distinct sections of the genus, while the females are so much alike that they are undistinguishable on the wing, and to an uneducated eye equally so in the cabinet.
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