148 entries under difficult topic. ×

1
tedious(adjective, dull, hard, boring)
1
testing(adjective, tough, severe, violent)
1
thrilling
1
tiresome(adjective, hard, tough, severe)
1
tough going
1
unpleasant(adjective, harsh, cruel, grim)
1
unyielding(tough, severe, painful, troubled)
1
vexatious(adjective, dull, boring, tired)
0
affecting
0
awkward(adjective, demanding, grueling, problematical)
0
blazing
0
criminal(adjective, unpleasant, grim, savage)
0
destroying(adjective, unpleasant, grim, savage)
0
discomforting
0
dramatic
0
eloquent
0
embarrassing
0
emotional
0
energy-consuming
0
excited enthusiastic(expression, stressful)
10 years ago|15k views|share |citing 
APASmart Define. (2016). strenuous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/strenuous/thesaurus/synonyms
ChicagoSmart Define. 2016. "strenuous thesaurus" https://smartdefine.org/strenuous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, strenuous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/strenuous/thesaurus/synonyms>.
MLASmart Define. "strenuous thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/strenuous/thesaurus/synonyms>