Definitions:

1. Having profound, often systematic knowledge; erudite. NOUN
   • Despite his young age, his learnedness in environmental science was recognized by leading experts in the field.
2. Profound scholarly knowledge. NOUN
   • His learnedness was evident in every lecture he delivered, drawing from a broad spectrum of sources to enrich his arguments.

Synonyms:

• education
• erudition
• knowledge
• learning
• literacy