314 entries under trouble topic. ×

8
uncertainty(noun, worry, anxiety, request)
8
unease(noun, worry, regard, strain)
7
angst(noun, worry, distress, anxiety)
7
be relevant to(verb, bother, disturb, worry)
7
headache(noun, strain, difficulty, anxiety)
6
dread(noun, worry, distress, anxiety)
6
foreboding(noun, worry, distress, anxiety)
6
lookout(noun, worry, difficulty, issue)
6
undertaking(noun, activity, business, company, action)
6
upset(noun, verb, hurt, bother)
6
vex(verb, upset, hurt, bother)
5
agitate(verb, upset, hurt, bother)
5
concentration(noun, mark, note, regard)
5
diligence(noun, regard, interest, notice)
5
doubt(noun, worry, distress, anxiety)
5
enthusiasm(noun, activity, regard, interest)
5
mistrust(noun, worry, anxiety, confusion)
5
prudence(noun, regard, care, responsibility)
5
qualm(noun, worry, distress, anxiety)
5
question(noun, business, worry, point)
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APASmart Define. (2016). concern thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/concern/thesaurus/synonyms
ChicagoSmart Define. 2016. "concern thesaurus" https://smartdefine.org/concern/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, concern thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/concern/thesaurus/synonyms>.
MLASmart Define. "concern thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/concern/thesaurus/synonyms>