English

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Etymology

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From un- +‎ forget +‎ -able or un- +‎ forgettable.

Pronunciation

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Adjective

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unforgettable (comparative more unforgettable, superlative most unforgettable)

  1. Very difficult or impossible to forget.
    Synonyms: memorable; see also Thesaurus:memorable
    Antonym: forgettable
    The things he subjected me to were horrible and unforgettable.
    • 1903 July, Jack London, “The Law of Club and Fang”, in The Call of the Wild, New York, N.Y.: The Macmillan Company; London: Macmillan & Co., →OCLC, page 44:
      He had never seen dogs fight as these wolfish creatures fought, and his first experience taught him an unforgetable lesson. It is true, it was a vicarious experience, else he would not have lived to profit by it.
    • 1961 July, J. Geoffrey Todd, “Impressions of railroading in the United States: Part Two”, in Trains Illustrated, page 419:
      The leading engine was one of the Class Y6 2-8-8-2 compound articulateds, [...] The stack noise of one of these great brutes slogging up a grade was quite unforgettable.

Translations

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