3
delusion(noun, passion, desire, thing, enthusiasm)
3
extravagant(adjective, fancy, exact, involved, busy)
3
fussy(adjective, fancy, difficult, exact, involved)
3
group(noun, network, aggregate, composite)
3
hairy
3
harsh(adjective, hard, severe, rough, difficult)
3
hidden(verb, adjective, hard, obscure, difficult)
3
idée fixe(noun, expression, passion, desire, thing)
3
incomprehensible(adjective, obscure, heavy, deep, puzzling)
3
insanity(noun, problem, quirk, hang-up)
3
inscrutable(adjective, difficult)
3
jumbled(adjective, difficult, involved, dense, complicated)
3
jungle(organization, system, net, web)
3
many-sided(adjective, various)
3
mesh(organization, system, net, web)
3
mingled(adjective, difficult, involved, intricate)
3
mixed-race(adjective, union, unity, amalgamation, joining)
3
multicolored(adjective, union, unity, amalgamation, joining)
3
multidimensional(adjective, component, measurement, versatile, dimension)
3
multiform(adjective, involved, intricate, various)
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APASmart Define. (2016). complex thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/complex/thesaurus/synonyms
ChicagoSmart Define. 2016. "complex thesaurus" https://smartdefine.org/complex/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, complex thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/complex/thesaurus/synonyms>.
MLASmart Define. "complex thesaurus" 11 January 2016. Web. 20 September 2026. <https://smartdefine.org/complex/thesaurus/synonyms>