50
dangerous(adjective, adverb, open, severe, difficult)
39
risky(adjective, adverb, open, severe, delicate)
36
hazardous(adjective, severe, difficult, delicate, awful)
31
precarious(adjective, adverb, upset, open, difficult)
23
scary
23
unsafe(adjective, smooth, delicate, uncertain, sensitive)
21
chancy(adjective, adverb, open, severe, delicate)
19
critical(adjective, bad, nasty, difficult, delicate)
16
parlous(adjective, bad, heavy, risky, safety)
15
insecure(adjective, upset, delicate, uncertain, anxious)
14
uncertain(adjective, upset, delicate, anxious, sensitive)
13
treacherous(adjective, delicate, uncertain, unsound, risky)
12
hairy(adjective, slang, delicate, informal, uncertain)
12
touch-and-go(adjective, delicate, uncertain, sensitive, unsound)
11
ticklish(adjective, upset, difficult, delicate, uncertain)
11
threatening(adjective, bad, heavy, acute, risky)
10
shaky(adjective, adverb, upset, open, delicate)
9
touchy(adjective, delicate, wild, uncertain, sensitive)
9
delicate(adjective, uncertain, sensitive, unstable, doubtful)
9
unhealthy(adjective, severe, delicate, awful, terrible)
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APASmart Define. (2015). perilous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/perilous/thesaurus/synonyms
ChicagoSmart Define. 2015. "perilous thesaurus" https://smartdefine.org/perilous/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, perilous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/perilous/thesaurus/synonyms>.
MLASmart Define. "perilous thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/perilous/thesaurus/synonyms>