Dictionary

undistinguishable en · ADJ

Pronunciation

• /ˌʌndɪˈstɪŋɡwɪʃəb(ə)l/ (UK)

Etymology

Etymology tree English un- English distinguish Proto-Indo-European *-dʰlom Proto-Italic *-ðlom Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English distinguishable English undistinguishable From un- + distinguishable.

Meanings

1. Imperceptible; indistinct.
2. Indistinguishable.
   • 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. 1869, Alfred Russel Wallace, The Malay Archipelago, volume I, London: Macmillan and Co., page 297:

Forms

Deriveds

undistinguishably · undistinguishableness