| discarnate(abstract, theoretical, abstruse, philosophical) |
| disguised(obscure, secret, unknown, hidden, concealed) |
| do up |
| doctor |
| doubtful(dark, uncertain, fantastic, mysterious, unbelievable) |
| elaborate(adjective, hard, fancy, difficult, complex) |
| enigmatical(obscure, strange, unknown, clandestine, underground) |
| entangled(adjective, hard, fancy, obscure, difficult) |
| eternal(abstract, theoretical, abstruse, philosophical) |
| experienced(knowledgeable, cultured, educated, erudite, enlightened) |
| expert(knowledgeable, cultured, educated, erudite, enlightened) |
| extreme |
| fantastic(new, unknown, unbelievable, implausible, untried) |
| far-fetched(adjective, hard) |
| fundamental(abstract, theoretical, abstruse, philosophical) |
| furtive(obscure, strange, unknown, clandestine, underground) |
| garbled |
| gasser(adjective, hard, fancy, difficult, complex) |
| grave(sound, intense, heavy, fierce, knowledgeable) |
| grounded(knowledgeable, cultured, educated, erudite, enlightened) |