rudimentary

1 belonging to or characteristic of an early level of skill or development rudimentary shelters built by prehistoric peoples Synonyms crude, low, rude, primitiveRelated Words basic, simple, uncomplicated; homely, homespun, unsophisticated; early, embryonic, primeval, primordial; backward, underdeveloped, undeveloped; aged, ancient, antediluvian, antiquated, antique, dated, fusty, hoary, musty, obsolete, old, oldfangled, old-fashioned, old-time, out-of-date, outworn, passé, past, quaint, unmodernizedNear Antonyms complex, complicated, intricate, involved, sophisticated; full-blown, grown, mature, matured, perfected, ripe, ripened; civilized, cultivated, enlightened, refined; contemporary, current, latest, mod, modern, modernistic, new, newfangled, new-fashioned, novel, now, present-day, space-age, state-of-the-art, supermodern, ultramodern, up-to-dateAntonyms advanced, developed, evolved, high, higher, late

2 of or relating to the simplest facts or theories of a subject had only a rudimentary knowledge of science Synonyms abecedarian, basal, basic, beginning, elemental, essential, fundamental, introductory, meat-and-potatoes, rudimental, elementary, 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