80 entries under difficult topic. ×

0
operose(adjective, awkward, demanding, grueling)
0
recondite(adjective, complex, intricate, thorny)
0
rigorous(adjective, awkward, demanding, grueling)
0
scabrous(adjective, awkward, demanding, grueling)
0
serious(adjective, awkward, demanding, grueling)
0
severe(adjective, awkward, demanding, grueling)
0
slavish(adjective, awkward, demanding, grueling)
0
sophisticated(adjective, complex, awkward, tricky)
0
strenuous(adjective, awkward, demanding, grueling)
0
testing(adjective, awkward, demanding, grueling)
0
tiring(adjective, awkward, demanding, grueling)
0
toilful(adjective, awkward, demanding, grueling)
0
toilsome(adjective, awkward, demanding, grueling)
0
unsparing(adjective, awkward, demanding, grueling)
0
uphill battle(expression, adjective, awkward, demanding)
0
various(adjective, complex, intricate, thorny)
0
wearing(adjective, awkward, demanding, grueling)
0
wearisome(adjective, awkward, demanding, grueling)
0
wearying(adjective, awkward, demanding, grueling)
0
wheels within wheels(expression, adjective, idiom, complex)
11 years ago|4.1k views|share |citing 
APASmart Define. (2015). problematical thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/problematical/thesaurus/synonyms
ChicagoSmart Define. 2015. "problematical thesaurus" https://smartdefine.org/problematical/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, problematical thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/problematical/thesaurus/synonyms>.
MLASmart Define. "problematical thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/problematical/thesaurus/synonyms>