| blind(verb, adjective, dull, close, cover) |
| bury(verb, close, cover, block, suppress) |
| complex(adjective, hard, difficult, delicate, heavy) |
| equivocal(adjective, cover, clear, rough, difficult) |
| imperceptible(adjective, weak, pale, subtle, hidden) |
| intricate(adjective, hard, difficult, heavy, complex) |
| mist(verb, clear, confuse, hide, conceal) |
| night |
| obfuscate(verb, cover, clear, alter, confuse) |
| perplexing(adjective, hard, rough, difficult, dark) |
| secluded(adjective, dark, near, distant, remote) |
| undefined(adjective, rough, uncertain, doubtful, dim) |
| unfamiliar(adjective, strange, new, different, unknown) |
| unimportant(adjective, mean, simple, lower, poor) |
| unnoticeable(adjective, quiet, see, plain, hidden) |
| adumbrate(verb, close, cover, block, suppress) |
| block(verb, cover, check, show, hinder) |
| covered(adjective, remote, secret, unknown, hidden) |
| difficult(adjective, hard, strange, uncertain, complex) |
| dismal(adjective, dark, sadness, gloom, unclear) |