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Obtuse vs Abstruse - What's the difference?

obtuse | abstruse |

As adjectives the difference between obtuse and abstruse

is that obtuse is blunt; not sharp while abstruse is concealed or hidden out of the way; secret.

obtuse

English

Adjective

(en-adj)
  • Blunt; not sharp.
  • Intellectually dull or dim-witted.
  • Indirect or circuitous.
  • Of sound: deadened or muffled.
  • (geometry) Of an angle: greater than 90 degrees but less than 180 degrees.
  • (geometry) Of a triangle: with one obtuse angle.
  • Synonyms

    * (intellectually dull ): dense, dim, dim-witted, thick (informal) * (of a sound ): deadened, muffled * (blunt ): blunt, dull * (of a triangle ): obtuse-angled

    Antonyms

    * (intellectually dull ): bright, intelligent, on the ball, quick off the mark, quick-witted, sharp, smart * (of a sound ): clear * (blunt ): pointed, sharp * (of an angle ): acute * (of a triangle ): acute, acute-angled

    Anagrams

    *

    Quotations

    * (English Citations of "obtuse") ----

    abstruse

    English

    Adjective

    (en-adj)
  • (obsolete) Concealed or hidden out of the way; secret.
  • * 1612 , Thomas Shelton (translator), Miguel de Cervantes (Spanish author), The History of the Valorous and Wittie Knight-Errant Don-Quixote of the Mancha , Part 4, Chapter 15, page 500:
  • O who is he that could carrie newes to our olde father, that thou wert but aliue, although thou wert hidden in the most abstruse dungeons of Barbarie; for his riches, my brothers and mine would fetch thee from thence.
  • * 1667 , , Paradise Lost :
  • The eternal eye whose sight discerns abstrusest thoughts.
  • Difficult to comprehend or understand; recondite; obscure; esoteric.
  • * 1548 , Bishop John Hooper, A Declaration of the Ten Holy Comaundementes of Almygthye God , Chapter 17 Curiosity, Page 218:
  • ...at the end of his cogitacions, fyndithe more abstruse , and doutfull obiections then at the beginning...
  • * 1748 , David Hume, Enquiries concerning the human understanding and concerning the principles of moral. London: Oxford University Press, 1973. ยง 13.
  • It is certain that the easy and obvious philosophy will always, with the generality of mankind, have the preference above the accurate and abstruse ;
  • * 1855 , , History of Latin Christianity :
  • Profound and abstruse topics.

    Usage notes

    * More abstruse and most abstruse are the preferred forms over abstruser and abstrusest.

    Derived terms

    * abstrusely * abstruseness

    References