basal

of or relating to the simplest facts or theories of a subject <she clearly lacked even a basal familiarity with the topic> Synonyms abecedarian, elementary, basic, beginning, elemental, essential, fundamental, introductory, meat-and-potatoes, rudimental, rudimentary, underlyingRelated Words primal, primary, prime, simple; crude, primeval, primitive, primordial, rude, uncomplicated; preliminary, preparatory; crucial, important, keyNear Antonyms complex, sophisticated; complicated, convoluted, detailed, elaborate, extensive, intricate; developed, evolved, high, higher, refinedAntonyms advanced