unadvanced
/ˌʌnəˈvænsd/ or /ˌʌnəˈvæn.tɪvd/Definitions
1. adjective
not advanced or sophisticated in thought, technology, or skill
“The unadvanced technology used in the old computer made it slow and outdated.”
2. adverb
not advanced or sophisticated in thought, technology, or skill
“The team played unadvanced football, focusing on basic strategies.”
3. noun
a lack of advancement or sophistication in thought, technology, or skill
“The company’s unadvanced technology hindered its global competitiveness.”