esrarengiz şey

listen to the pronunciation of esrarengiz şey
Türkçe - İngilizce
(deyim) closed book
A person or thing that cannot be easily understood; someone or something incomprehensible or puzzling

Her courteous, sedate, inexorable husband, whose will she could not bend, whom she could not cajole, whose mind was a closed book to her — a book which had lain by her hand for three years, which she had never had the curiosity to open! — Prisoners by Mary Cholmondeley.

mystery, unknown, enigma (sometimes said of a mysterious person)
A person or thing that cannot be known or understood; something unfathomable or puzzling
esrarengiz şey