Abstruse definitions

Abstruse

1) Clear as mud 2) Deep 3) Difficult to penetrate 4) Esoteric 5) Hard to comprehend 6) Hard to grasp 7) Hard to understand 8) Hidden 9) Obscure 10) Recondite 11) Secret
Found on https://www.crosswordclues.com/clue/abstruse

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Abstruse

• (a.) Concealed or hidden out of the way. • (a.) Remote from apprehension; difficult to be comprehended or understood; recondite; as, abstruse learning.
Found on http://thinkexist.com/dictionary/meaning/abstruse/

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Abstruse

Ab·struse' adjective [ Latin abstrusus , past participle of abstrudere to thrust away, conceal; ab , abs + trudere to thrust; confer French abstrus . See Threat .] 1. Concealed or hidden out of the way. [ Obsolete] « The eternal eye wh...
Found on http://www.encyclo.co.uk/webster/A/10

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abstruse

difficult to comprehend obscure 
Found on http://www.graduateshotline.com/list.html

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abstruse

[adj] - difficult to penetrate
Found on http://www.webdictionary.co.uk/definition.php?query=abstruse

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abstruse

abstruse 1. Concealed or hidden; hard to understand, deep; obscure. 2. Difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge. 3. Secret, hidden. 4. Etymology: from Latin abstrusus, past participle of abstrudere, 'conceal'; litterally, 'to thrust away', from ab-, 'away' + trudere 'to thrust, to push'.
Found on http://www.wordinfo.info/words/index/info/view_unit/2193/

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abstruse

deep adjective difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge; `the professor`s lectures were so abstruse that students tended to avoid them`; `a deep metaphysical theory`; `some recondite problem in historiography`
Found on https://www.encyclo.co.uk/local/20974

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abstruse

hard to understand; recondite; esoteric: abstruse theories. · secret; hidden.
Found on https://www.infoplease.com/dictionary/abstruse

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