adjective \əb-ˈstrüs, ab-\

: hard to understand

Full Definition of ABSTRUSE

:  difficult to comprehend :  recondite <the abstruse calculations of mathematicians>
ab·struse·ly adverb
ab·struse·ness noun

Examples of ABSTRUSE

  1. Her subject matter is abstruse.
  2. <you're not the only one who finds Einstein's theory of relativity abstruse>

Origin of ABSTRUSE

Latin abstrusus, from past participle of abstrudere to conceal, from abs-, ab- + trudere to push — more at threat
First Known Use: 1599


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