1. of, relating to, or written in hieroglyphics; using sacred or symbolic characters or pictures
2. difficult to read or understand; obscure or cryptic in meaning
Usage: figurative

Examples

• The ancient temple walls were covered in hieroglyphical inscriptions that scholars spent years decoding.
• Her handwriting was so hieroglyphical that no one could read her notes.
• The document contained hieroglyphical symbols that required expert interpretation.
• The artist used hieroglyphical designs to convey spiritual meaning in the mural.
• His instructions were written in such a hieroglyphical manner that we had to ask for clarification.
• Egyptologists study hieroglyphical texts to understand the civilization's history and beliefs.