75 entries under harsh topic. ×

78
hard(adjective, dull, great, tough, easy)
61
arduous(adjective, dull, hard, great, tough)
60
tough(adjective, dull, hard, great, easy)
45
burdensome(adjective, dull, hard, tough, severe)
37
severe(adjective, hard, tough, rough)
34
trying(adjective, dull, hard, tough, severe)
34
toilsome(adjective, hard, great, tough, difficulty)
29
taxing(adjective, hard, tough, rough)
28
rugged(adjective, hard, severe, evil, rough)
27
serious(adjective, hard, tough, easy)
26
oppressive(adjective, dull, hard, tough, severe)
24
demanding(adjective, dull, hard, tough, severe)
21
grinding(adjective, hard, cruel, complex)
19
onerous(adjective, dull, hard, great, tough)
19
grave(adjective, hard, tough, severe)
19
hard-nosed(adjective, hard, evil, rough, nasty)
19
hefty(adjective, dull, hard, cruel)
18
strenuous(adjective, dull, hard, great, tough)
18
cruel(adjective, hard, nasty, complex)
17
finicky(adjective, tough, meticulous, fussy)
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APASmart Define. (2016). difficult thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/difficult/thesaurus/synonyms
ChicagoSmart Define. 2016. "difficult thesaurus" https://smartdefine.org/difficult/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, difficult thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/difficult/thesaurus/synonyms>.
MLASmart Define. "difficult thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/difficult/thesaurus/synonyms>