• conventional, outworn, savage, low, primordial, antique, old, undeveloped, underweight, old fashioned, dated, customary, traditional, regressive, primeval, lower, elementary, unripe, passe, established, fusty, embryonic, antiquated, uneducated, unripened, undersized, hoary, noncivilized, rudimentary, out-of-date, rude, after, back, old-time, obsolete, behind, middle, early, backward, uncivilized, underdeveloped, nonprogressive, antediluvian, immature, noncivilised, low-tech, green, retarded, past, oldfangled, orthodox, germinal, musty.