94 entries under difficult topic. ×

7
bothersome(adjective, painful)
7
exigent(adjective, hard, heavy, severity)
6
irksome(adjective, dull, boring, painful)
6
rigid(adjective, hard, tough, severe, rough)
6
stern(adjective, hard, tough, severe, rough)
6
strenuous(adjective, dull, harsh, cruel)
5
austere(adjective, dull, hard, tough, severe)
5
stringent(adjective, hard, tough, severe, rough)
5
wearing(adjective, dull, hard, tough)
5
wearisome(adjective, dull, boring, tedious)
5
wearying(adjective, dull, boring, tired)
4
crushing(adjective, severe, harsh, heavy)
4
exhausting(adjective, dull, hard, tough)
4
stiff(adjective, hard, severe, rough)
4
vexatious(adjective, dull, boring, tired)
3
formidable(adjective, heavy)
3
fussy
3
superincumbent(adjective, heavy, cruel, demanding)
3
uphill
2
adverse
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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>