Synonyms|376Antonyms|65|Broader|5Narrower|1Related|159

79 entries under complex topic. ×

8
perplexing(adjective, hard, difficult, delicate)
7
delicate(bad, hard, difficult, heavy)
7
formidable(adjective, bad, difficult, delicate)
5
baffling(adjective, difficult, delicate, tricky)
4
abstruse(adjective, hard, difficult, delicate, loose)
3
problematical(adjective, hard, difficult, delicate)
3
puzzling(adjective, hard, difficult, loose)
3
recondite(adjective, difficult, involved, dense)
2
convoluted(adjective, difficulty, difficult, involved)
1
confounding(hard, delicate, tricky, complicated)
1
confusing(hard, delicate, tricky, complicated)
1
entangled(adjective, hard, difficult, delicate, loose)
1
mysterious(hard, delicate, tricky, complicated)
1
mystifying(hard, delicate, awkward, tricky)
1
paradoxical(hard, delicate, tricky, complicated)
0
Daedalean(adjective, difficult, involved, dense)
0
abstract(hard, delicate, tricky, complicated)
0
can of worms(expression, adjective, idiom, difficult)
0
deep(hard, delicate, tricky, complicated)
0
dense(adjective, difficult, involved, complicated)
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APASmart Define. (2015). thorny thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/thorny/thesaurus/synonyms
ChicagoSmart Define. 2015. "thorny thesaurus" https://smartdefine.org/thorny/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, thorny thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/thorny/thesaurus/synonyms>.
MLASmart Define. "thorny thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/thorny/thesaurus/synonyms>