50 entries under hard topic. ×

15
disturbing(verb, adjective, bad, severe)
15
perturbing(verb, adjective, bad, severe)
12
disquieting(verb, adjective, bad, severe)
12
distressing(adjective, severe, offensive, awkward)
12
upsetting(verb, adjective, bad, severe)
10
worrying(adjective, bad, severe, offensive)
9
annoying(verb, adjective, severe, offensive)
9
harassing(verb, severe, offensive, distressing)
9
vexing(verb, adjective, severe, offensive)
9
worrisome(adjective, severe, offensive, uncertain)
8
agitating(verb, severe, offensive, distressing)
8
irritating(verb, adjective, severe, offensive)
6
aggravating(verb, severe, offensive, distressing)
6
unsettling(adjective, bad, severe, offensive)
5
difficult(adjective, severe, offensive, awkward)
5
discomforting(adjective, severe, offensive, distressing)
5
discomposing(verb, severe, offensive, distressing)
5
irksome(adjective, bad, severe, offensive)
5
painful(severe, offensive, distressing, upsetting)
4
alarming(adjective, severe, offensive, treacherous)
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APASmart Define. (2015). troubling thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/troubling/thesaurus/synonyms
ChicagoSmart Define. 2015. "troubling thesaurus" https://smartdefine.org/troubling/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, troubling thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/troubling/thesaurus/synonyms>.
MLASmart Define. "troubling thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/troubling/thesaurus/synonyms>