1. characterized by or full of jargon; using specialized or technical language that is difficult for outsiders to understand
Usage: informal; often used critically to describe unnecessarily obscure language

Examples

• The legal document was so jargony that most people couldn't understand it without a lawyer's help.
• Her presentation was jargony and failed to communicate the main ideas to the general audience.
• The software manual's jargony language made it frustrating for beginners to learn.
• He criticized the report for being too jargony instead of using everyday language.
• The professor's jargony explanations left many students confused during the lecture.