| cloud(verb, upset, trouble, cover, clear) |
| obscure(verb, upset, trouble, clear, confuse) |
| obfuscate(verb, cover, clear, reduce, lower) |
| bedim(verb, cover, clear, reduce, lower) |
| befog(verb, cover, clear, reduce, lower) |
| fog(verb, upset, trouble, cover, clear) |
| overcast(verb, cover, clear, obscure, confuse) |
| overshadow(verb, cover, clear, obscure, confuse) |
| darken(verb, upset, trouble, cover, reduce) |
| eclipse(verb, cover, clear, reduce, lower) |
| blur(verb, cover, clear, reduce, lower) |
| shadow(verb, cover, clear, obscure, confuse) |
| shade(verb, cover, obscure, confuse, hide) |
| blacken(verb, obscure, deepen, unlit) |
| muddy(verb, cover, reduce, lower, obscure) |
| blot out(verb, expression, phrasal verb, obscure, conceal) |
| cloak(verb, cover, obscure, confuse, hide) |
| haze(verb, cover, reduce, lower, obscure) |
| blear(verb, cover, clear, reduce, lower) |
| cast a shadow(verb, expression, idiom, shade, obscure) |