Synonyms of complex in English:

complex


See definition of complex

adjective

1‘a complex situation’

SYNONYMS

complicated, involved, intricate, convoluted, tangled, elaborate, serpentine, labyrinthine, tortuous, impenetrable, Byzantine, Daedalian, Gordian

difficult, hard, knotty, tricky, thorny, problematical

informal fiddly

rare involute, involuted

ANTONYMS

simple, straightforward

2‘a complex structure’

SYNONYMS

compound, composite, compounded, multiplex


noun

1‘a complex of mountain roads’

SYNONYMS

network, system, interconnected scheme, interconnected structure, interconnected system, nexus, web, tissue

combination, composite, synthesis, fusion, aggregation

2‘there's no point having a complex about losing your hair’

SYNONYMS

obsession, phobia, fixation, preoccupation

informal neurosis

informal idée fixe

informal hang-up, thing, bee in one's bonnet