94 entries under difficult topic. ×

50
severe(adjective, hard, tough, severe, rough)
39
burdensome(adjective, dull, hard, severe, rough)
33
arduous(adjective, dull, hard, tough, severe)
32
cruel(adjective, hard, severe, harsh)
32
grievous(adjective, hard, severe, complex)
30
hard(adjective, dull, tough, severe, rough)
30
tough(adjective, dull, hard, severe, firm)
30
difficult(adjective, dull, hard, tough, severe)
29
unbearable(adjective, bad, hard, complex)
28
weighty(adjective, hard, heavy, complex)
28
painful(adjective, hard, complex, painful)
26
trying(adjective, dull, hard, tough)
26
laborious(adjective, dull, hard, severe, rough)
26
leaden(adjective, hard, heavy, complex)
25
sticky(adjective, moist, close, hard)
25
heavy-handed(adjective, hard, complex, overwhelming)
25
sad(adjective, dull, hard, severe, obscure)
24
taxing(adjective, hard, heavy, complex)
24
sore(adjective, hard, complex, painful)
23
backbreaking(adjective, hard, heavy, complex)
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APASmart Define. (2015). oppressive thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/oppressive/thesaurus/synonyms
ChicagoSmart Define. 2015. "oppressive thesaurus" https://smartdefine.org/oppressive/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, oppressive thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/oppressive/thesaurus/synonyms>.
MLASmart Define. "oppressive thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/oppressive/thesaurus/synonyms>