abstruse
UK /əbˈstɹuːs/ · US /əbˈstɹus/ adjective
Forms abstruser abstrusest
- adjective Difficult to comprehend or understand; obscure.
- adjective (obsolete) Concealed or hidden; secret.
Synonyms
abstrusive arcane cryptic esoteric recondite Chinese dense enigmatic fathomless bottomless Greek inapprehensible incognizable incomprehensible ineffable inenubilable inexplicable impenetrable insensible inscrutable deep
Antonyms
clear obvious understandable apprehensible limpid comprehensible explainable explicable explicatable fathomable graspable illuminable
Etymology
Learned borrowing from Latin abstrūsus (“concealed, hidden; having been concealed”), an adjective use of the perfect passive participle of abstrūdō (“to conceal, hide; to push or thrust away”), from abs- (from ab- (prefix meaning ‘away; from; away from’)) + trūdō (“to push, shove; to thrust”) (ultimately from Proto-Indo-European *trewd- (“to push; to thrust”)).
* German abstrus (“abstruse”)
* Italian astruso (“abstruse”)
* Middle French abstruse (modern French abstrus, abstruse (“(derogatory, literary) abstruse”)
* Portuguese abstruso (“abstruse”)
* Spanish abstruso (“abstruse”)
Webster’s 1913
- adjective Concealed or hidden out of the way. [Obs.]
- adjective Remote from apprehension; difficult to be comprehended or understood; recondite; as, abstruse learning.
Etymology [L. abstrusus, p. p. of abstrudere to thrust away, conceal; ab, abs + trudere to thrust; cf. F. abstrus. See Threat.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “abstruse”, CC BY-SA 4.0. Details