Words similar to secretive

Example sentences for: secretive

How can you use “secretive” in a sentence? Here are some example sentences to help you improve your vocabulary:

During the course of 1999, Atta and his group became ever more extreme and secretive, speaking only in Arabic to conceal the content of their conversations.
The nonstate actors range from 10 cent thugs such as Miller, who has merely shanghaied a small island, to world-class dastards such as Bin Laden, who runs a supranational organization, has loyalty to no government, owns a vast fortune and an armory of high-tech weapons, and is engaged in an elaborate conspiracy so secretive that we were not aware of it till it smacked us in the head.
Where the purpose of anti-language is to be secretive, slang is often offensive.
.. rouat , or the cacophonous: chuchbachuch bauachuch bakaxichuch bazabachuch bachaxichuch bazetophoth bainchoooch . (Psycholinguists like F. Trojan even trace relationships between word sounds and word meanings, the deep, dark vowels like o and u having an awesome, threatening, secretive nature on the one hand, and on the other the lighter ones like e and i often referring to the gentler, pleasanter things--whether in Indo-European or Chinese phonetics.)
But no one's claiming that these lists represent some larger truth about the book market (such truths are elusive, anyway, since publishers are notoriously secretive about sales figures).