complex

complex [adj1] involved, intricate circuitous, complicated, composite, compound, compounded, confused, conglomerate, convoluted, elaborate, entangled, heterogeneous, knotty, labyrinthine, manifold, mingled, miscellaneous, mixed, mixed-up, mosaic, motley, multifarious, multiform, multiple, multiplex, tangled, tortuous, variegated; concept 562 —Ant. clear, easy, evident, homogeneous, obvious, plain, simple, uniform complex [adj2] difficult to understand abstruse, bewildering, Byzantine, circuitous, complicated, confused, convoluted, crabbed, cryptic, Daedalean, discursive, disordered, disturbing, enigmatic, entangled, excursive, Gordian, hidden, impenetrable, inscrutable, interwoven, intricate, involved, jumbled, knotted, knotty, labyrinthine, mazy, meandering, mingled, mixed, muddled, obscure, paradoxical, perplexing, puzzling, rambling, recondite, round-about, sinuous, snarled, sophisticated, tangled, tortuous, undecipherable, unfathomable, winding; concepts 402,529 —Ant. apparent, clear, direct, discernible, easy, evident, obvious, plain complex [n1] composite, aggregate association, compound, conglomerate, ecosystem, entanglement, group, network, organization, scheme, structure, syndrome, synthesis, system, totality; concepts 432,770 complex [n2] psychological problem anxiety, a thing about something*, exaggerated reaction, fear, fixation, fixed idea, hang-up*, idée fixe, insanity, mania, neurosis, obsession, phobia, preoccupation, repression; concept 410