záhadný
Záhadný is a Czech adjective meaning mysterious or enigmatic. It is used to describe people, events, objects, or phenomena whose nature or causes are not readily understood and invite curiosity or investigation.
Etymology and grammar: The word is derived from the noun záhada, meaning mystery, with the adjectival suffix
Usage and nuances: Common collocations include záhadný muž (a mysterious man), záhadný případ (a mysterious case),
Synonyms and related terms: Tajemný is the closest synonym, conveying secrecy and allure as well as mystery.