non-relational
/ˌnɒnrɪˈleɪʃ(ə)n(ə)l/ /ˌnɒnrɪˈleɪʃən(ə)l/adjective
Not relational; (Computing ) of, relating to, or designating a database that is not structured in terms of simple two-dimensional relations (tables).
Origin
Late 19th century; earliest use found in Mind. From non- + relational.