hieroglyphical adjective. 
[hʌɪrǝ'glɪfɪk(ǝ)l] L16.[formed as HIEROGLYPHIC + -AL1.]1.  Pertaining to or of the nature of hieroglyphics; 
transf. & 
fig. symbolical, emblematic. 
L16.2.  Difficult to decipher or make sense of. 
E17.  [TahlilGaran] English Dictionary ▲