bright—dark

neat—sluggish

clear—heavy

pure—sandy

clean—dirty

natural—artificial

calm—irritating

harmonious—inharmonious

agreeable—disagreeable

comfortable—uncomfortable

refined—vulgar

likeable—dislikable

fresh—stale

fine—dusty

transparent—opaque

airy—murky

dry—watery

brilliant—stringy

smooth—rough

glossy—gloomy

slippery—coarse

light—sticky

simple—thick