| messy(adjective, hard, difficult, complex) |
| multiple(adjective, hard, difficult, complex) |
| precarious(adjective, hard, difficult, complex) |
| sensitive(adjective, hard, difficult, delicate, complex) |
| severe(adjective, hard, difficult, complex, awkward) |
| sinuous(adjective, hard, difficult, complex) |
| toilsome(adjective, hard, difficult, complex, awkward) |
| trying(adjective, hard, difficult, complex, thorny) |
| convoluted(adjective, hard, simple, fancy, obscure) |
| entangled(verb, adjective, hard, fancy, difficult) |
| affected(verb, adjective, concern, keen, sympathetic) |
| engaged(verb, adjective, happy, lively, active) |
| engrossed(verb, adjective, keen, full, attentive) |
| confused(verb, adjective, obscure, complex, sophisticated) |
| concerned(verb, adjective, concern, keen, sympathetic) |
| tortuous(adjective, obscure, difficult, complex, sophisticated) |
| interested(adjective, concern, full, attentive, concerned) |
| included(verb, adjective, included) |
| embroiled |
| preoccupied(adjective, happy, full, absorbed, occupied) |