100 entries under difficult topic. ×

19
unbearable(adjective, hard, complex, painful)
18
dire(adjective, hard, complex)
18
involved(adjective, hard, complex, thorny)
18
serious(adjective, hard, complex)
18
troubled(adjective, hard, complex)
13
bothersome(adjective, tough, severe, painful)
13
troublesome(adjective, hard, tough, severe)
12
irksome(adjective, dull, boring, painful)
11
demanding(adjective, dull, hard, tough, severe)
9
onerous(adjective, dull, hard, tough)
8
exacting(adjective, dull, hard, tough, severe)
8
testing(noun, verb, adjective, meet, tough)
8
wearisome(adjective, dull, tough, severe)
7
grueling(adjective, hard, tough, painful)
7
strenuous(adjective, dull, tough, severe, rough)
6
ticklish(adjective, tough, delicate, awkward)
5
exhausting(adjective, dull, hard, tough)
5
formidable(adjective, tough, severe, rough)
5
heavy(adjective, dull, tough, severe, rough)
5
wearing(adjective, dull, hard, tough)
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APASmart Define. (2016). trying thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/trying/thesaurus/synonyms
ChicagoSmart Define. 2016. "trying thesaurus" https://smartdefine.org/trying/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, trying thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/trying/thesaurus/synonyms>.
MLASmart Define. "trying thesaurus" 13 March 2016. Web. 22 September 2026. <https://smartdefine.org/trying/thesaurus/synonyms>