Part of speech: adverb


Part of speech: noun


Part of speech: adjective

Hard to be understood; difficult.

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Usage examples "abstruse":

  1. " 'The Great Ice Age, ' by James Geikie, is a book that unites the popular and abstruse elements of scientific research to a remarkable degree. - "Fungi: Their Nature and Uses", Mordecai Cubitt Cooke.
  2. The subject, here undertaken by Mr. Bryant was one of uncommon difficulty; one of the most abstruse and difficult which antiquity presents to us; the information to be obtained concerning it must be collected from a vast number of incidental passages, observations and assertions scattered through antient authors, who being themselves but imperfectly acquainted with their subject, it is next to impossible to reconcile. - "A New System; or, an Analysis of Antient Mythology. Volume I.", Jacob Bryant.
  3. On the whole, I am very weary of most " Literature":- and indeed, in very sorrowful, abstruse humor otherwise at present. - "The Correspondence of Thomas Carlyle and Ralph Waldo Emerson, 1834-1872, Vol II.", Thomas Carlyle and Ralph Waldo Emerson.