157 entries under adjective topic. ×

1
sophisticated(hard, fancy, obscure, difficult)
1
technical(details, specialized, mechanics)
1
tenebrous(obscure, difficult, strange, uncertain)
1
tortuous(obscure, difficult, complex, sophisticated)
1
troublesome(hard, fancy, difficult, delicate)
1
undecipherable
1
various(hard, fancy, difficult, complex)
1
wheels within wheels(expression, idiom, hard, fancy)
0
abysmal(deep, profound, bottomless, unsounded)
0
amphibological(obscure, difficult, uncertain, unclear)
0
arid(dull, obscure, dry, precise)
0
baroque(difficult, complex, sophisticated, involved)
0
business(professional, occupational, job-related)
0
concerning details(expression, special, modern, advanced)
0
contradictory
0
corrupt(evil, mysterious, threatening, nefarious)
0
daedal(difficult, complex, sophisticated, involved)
0
damnable(evil, mysterious, threatening, nefarious)
0
dense(difficult, complex, involved, complicated)
0
dour(evil, mysterious, threatening, nefarious)
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APASmart Define. (2015). abstruse thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms
ChicagoSmart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, abstruse thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>.
MLASmart Define. "abstruse thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms>