difficult to decipher
of, relating to, or written with this system of symbols
Undecipherable handwriting or secret symbol.
Any symbol used in this system; a hieroglyph.
A writing system of ancient Egypt, Minoans, Maya and other civilizations, using pictorial symbols to represent individual sounds as a rebus
Not accurately determined or determinable.
Not definitively or precisely determined, because of the presence of infinity or zero symbols used in any of several improper combinations.
With no genetically defined end, and thus theoretically limitless.
Designed to allow the incorporation of future changes whose nature is not yet known.
Not topped with some form of terminal bud.
Intersex.
Imprecise or vague.
a variable.
A symbol that resembles a variable or parameter but is used purely formally and neither signifies nor is ever assigned a particular value;