Origin: 1645–55; 1905–10 for def. 7; (adj.) <
Latin complexus, past participle of
complectī, complectere to embrace, encompass, include, equivalent to
complect- (
see complect) +
-tus past participle suffix; (noun) <
Late Latin complexus totality, complex (
Latin: inclusion, grasping, embrace), equivalent to
complect(
ere) +
-tus suffix of v. action; reanalysis of the
Latin v. as “to intertwine (completely)” has influenced sense of the adj.
Related formscom·plex·ly, adverb
com·plex·ness, noun
o·ver·com·plex, adjective
qua·si-com·plex, adjective
qua·si-com·plex·ly, adverb
EXPANDsu·per·com·plex, adjective
un·com·plex, adjective
un·com·plex·ly, adverb
un·com·plex·ness, noun
COLLAPSESynonyms
3. knotty, tangled, labyrinthine. 6. network, web, tangle, labyrinth.
Antonyms
2, 3. simple.