5
maze(noun, organization, system, net, web)
5
motley(adjective, involved, intricate, various)
5
neurosis(noun, worry, passion, desire, anxiety)
5
nice(hard, delicate, tricky, complicated, troublesome)
5
troublesome(adjective, hard, fancy, difficult, delicate)
5
twisted
5
varied(adjective, union, unity, amalgamation, joining)
5
wheels within wheels(expression, adjective, idiom, hard, fancy)
4
Baroque(adjective, sophisticated, involved, elaborate, complicated)
4
building complex(noun, expression, idiom)
4
busy(adjective, upset, fancy, exact, energetic)
4
confounding(adjective, hard, delicate, tricky, complicated)
4
coordination compound(noun, expression, idiom)
4
critical(delicate, awkward, complicated)
4
decorated(adjective, fancy, exact, involved, busy)
4
devious(sensitive, intelligent, shrewd, complicated, daedal)
4
entirety(noun, entity, business, body, total)
4
exacting(adjective, sensitive, intelligent, shrewd)
4
good
4
heavy(adjective, severe, difficult)
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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>