Based on meaning:
* Alphabet: If you're focusing on the writing system, "alphabet" is a good contrast as it uses letters instead of pictures.
* Spoken language: If you're thinking about communication methods, "spoken language" emphasizes the use of sound over visual symbols.
* Plain text: This emphasizes the simplicity of written language without any special symbols or pictures.
Based on usage:
* Modern writing: This contrasts with the ancient origins of hieroglyphics.
* Simple language: This suggests something easy to understand, unlike the complexity of hieroglyphics.
Ultimately, the best antonym depends on the specific context and the intended meaning.