Adjective

(en adjective)

Hidden, covered over; overgrown, sheltered.

* 1590 , (Edmund Spenser), (The Faerie Queene) , III.5:

Within that wood there was a covert glade, / Foreby a narrow foord, to them well knowne

* (Francis Bacon) (1561-1626)

to plant a covert alley

(figuratively) Secret, surreptitious, concealed.

* (William Shakespeare) (1564-1616)

how covert matters may be best disclosed

* (John Milton) (1608-1674)

whether of open war or covert guile

*{{quote-magazine, date=2013-07-26, author=(Leo Hickman)

, volume=189, issue=7, page=26, magazine=(The Guardian Weekly) , title= How algorithms rule the world , passage=The use of algorithms in policing is one example of their increasing influence on our lives.

Adjective

(en adjective)

Relating to mystics or mysticism.

Having a spiritual significance that transcends human understanding.

*{{quote-magazine, date=2012-01

, author=Stephen Ledoux , title=Behaviorism at 100 , volume=100, issue=1, page=60 , magazine= citation , passage=Becoming more aware of the progress that scientists have made on behavioral fronts can reduce the risk that other natural scientists will resort to mystical agential accounts when they exceed the limits of their own disciplinary training.}}

Inspiring a sense of spiritual mystery, awe, and fascination.