brilliant Antonyms

shady sombre sombrous squally stratiform stupid stygian subfuscous suburban swart somber soft-headed silvered simple simple-minded simplistic slater sleazy sloughy slow slow-witted tallow-faced tenebrific unreasonable vacuous vespertine weak-minded windowless wintery witless wooden wrinkled unconspicuous turbid tenebrious tenebrose tenebrous terrible thick tomfool touched trumpery tur zoological nonsensical overcast overshadowed pale palish pallid