English words for 'an inscrutable person who keeps his thoughts and intentions secret'

As you may have noticed, above you will find words for "an inscrutable person who keeps his thoughts and intentions secret". Hover the mouse over the word you'd like to know more about to view its definition. Click search related words by phrase or description. to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.

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