C2 adjective/noun /ˌhaɪərəˈɡlɪfɪk/
hieroglyphic
иеоглифический
Meaning
Relating to or written in hieroglyphs; symbols or writing that is difficult to understand.
Example
The archaeologists studied the hieroglyphic inscriptions carefully.
Археологи тщательно изучали иероглифические надписи.