unacademic
/ˌʌnækəˈdɛmɪk/Definitions
1. adjective
Lacking academic quality or standards; unscholarly.
“The unacademic writing style made it difficult to understand the complex theories.”
2. noun
A person who is unacademically inclined or unscholarly in their approach.
“The professor was disappointed by the unacademic attitude of his students.”