28 entries under complex topic. ×

31
hard(adjective, difficult)
30
arduous(adjective, hard, difficult)
29
laborious(adjective, hard, difficult)
28
backbreaking(adjective, hard, difficult, strenuous)
27
severe(adjective, hard, difficult, harsh)
25
burdensome(adjective, hard, difficult)
25
cruel(adjective, hard, difficult, harsh)
24
toilsome(adjective, hard, difficult)
23
operose(adjective, hard, difficult)
23
painful(adjective, hard, difficult)
23
trying(verb, adjective, hard, difficult)
22
penal(adjective, hard, difficult, punishment)
22
taxing(adjective, hard, difficult)
22
tough(adjective, hard, difficult)
21
difficult(adjective, hard)
21
oppressive(adjective, hard, difficult)
20
leaden(adjective, hard, difficult)
20
tight(adjective, hard, difficult, troublesome)
19
grave(adjective, hard, difficult)
19
grievous(adjective, hard, difficult)
<12>
11 years ago|6.3k views|share |citing 
APASmart Define. (2015). punishing thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/punishing/thesaurus/synonyms
ChicagoSmart Define. 2015. "punishing thesaurus" https://smartdefine.org/punishing/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, punishing thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/punishing/thesaurus/synonyms>.
MLASmart Define. "punishing thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/punishing/thesaurus/synonyms>