97 entries under difficult topic. ×

2
grievous(adjective, hard, great, tough)
2
grumbling(adjective, upset, cross, unhappy)
2
grumpy(adjective, upset, cross, unhappy)
2
negative(adjective, harsh, hostile, trivial)
2
obstinate(adjective, mean, severe, irritable)
2
perverse(adjective, mean, nervous, worried)
2
plaintive(adjective, upset, cross, unhappy)
2
quarrelsome(adjective, crabby, cranky)
2
rough(adjective, awkward, problematic, fussy)
2
trying(hard, tough, harsh, delicate)
2
unpredictable(adjective, tricky)
1
bearish(crabby, cranky, discontented, complaining)
1
cranky(mean, nervous, irritable, worried)
1
crotchety(adjective, mean, nervous, irritable)
1
crusty(adjective, mean, irritable, crabby)
1
disagreeable(adjective, mean, vicious, crabby)
1
discontented(adjective, upset, cross, unhappy)
1
dissatisfied(discontented, displeased, complaining, disgruntled)
1
edgy(adjective, mean, nervous, worried)
1
grouchy(mean, irritable, crabby, cranky)
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APASmart Define. (2016). critical thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/critical/thesaurus/synonyms
ChicagoSmart Define. 2016. "critical thesaurus" https://smartdefine.org/critical/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, critical thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/critical/thesaurus/synonyms>.
MLASmart Define. "critical thesaurus" 16 February 2016. Web. 23 September 2026. <https://smartdefine.org/critical/thesaurus/synonyms>